WPF publish initial content (#1032)

* Add overview article for new WPF (#178) * Remove previous WPF .NET 5 content * Overview article * New article: Create new WPF project (#183) * Basic index file * Finish article for new project. * acro * markdown fix * Fix build errors * fix code lang * fix code lang * Add differences article for WPF (#186) * Fix VS version for create app * Add differences article * Minor * fix overview styles code * Add code langs for overview * Port Window Overview WPF article (#1011) * Add Window overview article * Add TOC * Remove temp code * Fix headers * Port final Windows related articles (#1015) * Initial test commit * Add system dialogs * 75% complete * Add images * Fix linter * Add to toc * Add more howto * Fix code * Add get/set main window * Add missing code * Add to toc * Fix warnings * Fix warnings * missing code * Update see also * fix xref * Migrate wpf net core controls-styles articles (#1023) * Migrate control-styles * Fix links * Fix links * Port databinding article. (#1022) * Migrated databinding overview * update toc * Fix links/snippets * fix links * Move to correct folder * Port initial resources docs (#1026) * initial resources docs * Build errors * Update dotnet-desktop-guide/net/wpf/systems/xaml-resources-overview.md Co-authored-by: Genevieve Warren <[email protected]> * Apply suggestions from code review Co-authored-by: Genevieve Warren <[email protected]> * Feedback * Add app article * Add system article * Minor * meta * fix toc * Apply suggestions from code review Co-authored-by: Genevieve Warren <[email protected]> Co-authored-by: Genevieve Warren <[email protected]> * Add xaml article * reformat redirect * Redirects * WPF update XAML article (#1031) * convert snippets * minor edits * minor * Fix warnings * Fixes #1028 * Fixes #1028 * Apply suggestions from code review Co-authored-by: Genevieve Warren <[email protected]> * update redirects Co-authored-by: Genevieve Warren <[email protected]> * minor updates to link * Readd migration article * Warning fixes * Fix lint * Minor updates * Fix warnings for TOC/YML * last warnings Co-authored-by: Genevieve Warren <[email protected]>
2026-09-07 07:56:07 +02:00 · 2021-04-15 12:52:05 -07:00
parent a3b012ae99
commit ea8529f082
461 changed files with 8575 additions and 689 deletions
@@ -0,0 +1,9 @@
+<Application x:Class="Dialogs.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:Dialogs"
+             StartupUri="Window1.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,16 @@
+using System.Windows;
+
+namespace Dialogs
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // Create the window
+            Window1 window = new Window1();
+
+            // Open the window
+            window.Show();
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Controls;
+
+namespace Dialogs
+{
+    public class MarginValidationRule : ValidationRule
+    {
+        public double MinMargin { get; set; }
+        public double MaxMargin { get; set; }
+
+        public override ValidationResult Validate(object value, CultureInfo cultureInfo)
+        {
+            double margin;
+
+            // Is a number?
+            if (!double.TryParse((string)value, out margin))
+            {
+                return new ValidationResult(false, "Not a number.");
+            }
+
+            // Is in range?
+            if ((margin < MinMargin) || (margin > MaxMargin))
+            {
+                var msg = $"Margin must be between {MinMargin} and {MaxMargin}.";
+                return new ValidationResult(false, msg);
+            }
+
+            // Number is valid
+            return new ValidationResult(true, null);
+        }
+    }
+}
@@ -0,0 +1,63 @@
+<Window x:Class="Dialogs.Margins"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Change Margins"
+        Closing="Window_Closing"
+        MinHeight="200"
+        MinWidth="300"
+        SizeToContent="WidthAndHeight"
+        ResizeMode="NoResize"
+        ShowInTaskbar="False"
+        WindowStartupLocation="CenterOwner" 
+        FocusManager.FocusedElement="{Binding ElementName=leftMarginTextBox}">
+    <Grid Margin="10">
+        <Grid.Resources>
+            <!-- Default settings for controls -->
+            <Style TargetType="{x:Type Label}">
+                <Setter Property="Margin" Value="0,3,5,5" />
+                <Setter Property="Padding" Value="0,0,0,5" />
+            </Style>
+            <Style TargetType="{x:Type TextBox}">
+                <Setter Property="Margin" Value="0,0,0,5" />
+            </Style>
+            <Style TargetType="{x:Type Button}">
+                <Setter Property="Width" Value="70" />
+                <Setter Property="Height" Value="25" />
+                <Setter Property="Margin" Value="5,0,0,0" />
+            </Style>
+        </Grid.Resources>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition />
+        </Grid.RowDefinitions>
+
+        <!-- Left,Top,Right,Bottom margins-->
+        <Label Grid.Column="0" Grid.Row="0">Left Margin:</Label>
+        <TextBox Name="leftMarginTextBox" Grid.Column="1" Grid.Row="0" />
+
+        <Label Grid.Column="0" Grid.Row="1">Top Margin:</Label>
+        <TextBox Name="topMarginTextBox" Grid.Column="1" Grid.Row="1"/>
+
+        <Label Grid.Column="0" Grid.Row="2">Right Margin:</Label>
+        <TextBox Name="rightMarginTextBox" Grid.Column="1" Grid.Row="2" />
+
+        <Label Grid.Column="0" Grid.Row="3">Bottom Margin:</Label>
+        <TextBox Name="bottomMarginTextBox" Grid.Column="1" Grid.Row="3" />
+
+        <!-- Accept or Cancel -->
+        <StackPanel Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="4" Orientation="Horizontal" HorizontalAlignment="Right">
+            <Button Name="okButton" Click="okButton_Click" IsDefault="True">OK</Button>
+            <Button Name="cancelButton" IsCancel="True">Cancel</Button>
+        </StackPanel>
+    </Grid >
+</Window>
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace Dialogs
+{
+    /// <summary>
+    /// Interaction logic for Margins.xaml
+    /// </summary>
+    public partial class Margins : Window
+    {
+        public Margins()
+        {
+            InitializeComponent();
+        }
+
+        private void okButton_Click(object sender, RoutedEventArgs e)
+        {
+            DialogResult = true;
+        }
+
+        // <CancelAndHide>
+        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
+        {
+            // First, cancel the window closure
+            e.Cancel = true;
+
+            // Next, hide the window
+            Hide();
+        }
+        // </CancelAndHide>
+    }
+}
@@ -0,0 +1,17 @@
+<Window x:Class="Dialogs.Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Dialogs"
+        Width="500" Height="165">
+
+    <StackPanel>
+        <Button Click="Button_Click">Message Box</Button>
+        <Button Click="Save_Click">Save file</Button>
+        <Button Click="Open_Click">Open file</Button>
+        <Button Click="Print_Click">Print</Button>
+        <Button Click="formatMarginsButton_Click" Content="_Margins..."/>
+    </StackPanel>
+
+</Window>
@@ -0,0 +1,81 @@
+using System.Windows;
+
+namespace Dialogs
+{
+    public partial class Window1 : Window
+    {
+        public Window1()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+
+        }
+
+        private void Save_Click(object sender, RoutedEventArgs e)
+        {
+
+        }
+
+        private void Open_Click(object sender, RoutedEventArgs e)
+        {
+
+        }
+
+        private void Print_Click(object sender, RoutedEventArgs e)
+        {
+
+        }
+
+        private void formatMarginsButton_Click(object sender, RoutedEventArgs e)
+        {
+            Method2();
+
+        }
+
+        // <DialogResultButtons>
+        private void okButton_Click(object sender, RoutedEventArgs e) =>
+            DialogResult = true;
+
+        private void cancelButton_Click(object sender, RoutedEventArgs e) =>
+            DialogResult = false;
+        // </DialogResultButtons>
+
+        private void Method()
+        {
+            // <HandleClosing>
+            var marginsWindow = new Margins();
+
+            marginsWindow.Closed += (sender, eventArgs) =>
+            {
+                MessageBox.Show($"You closed the margins window! It had the title of {marginsWindow.Title}");
+            };
+
+            marginsWindow.Show();
+            // </HandleClosing>
+        }
+
+        private void Method2()
+        {
+            // <HandleDialogResponse>
+            var dialog = new Margins();
+
+            // Display the dialog box and read the response
+            bool? result = dialog.ShowDialog();
+
+            if (result == true)
+            {
+                // User accepted the dialog box
+                MessageBox.Show("Your request will be processed.");
+            }
+            else
+            {
+                // User cancelled the dialog box
+                MessageBox.Show("Sorry it didn't work out, we'll try again later.");
+            }
+            // </HandleDialogResponse>
+        }
+    }
+}
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+        <!-- UAC Manifest Options
+             If you want to change the Windows User Account Control level replace the 
+             requestedExecutionLevel node with one of the following.
+
+        <requestedExecutionLevel  level="asInvoker" uiAccess="false" />
+        <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
+        <requestedExecutionLevel  level="highestAvailable" uiAccess="false" />
+
+            Specifying requestedExecutionLevel element will disable file and registry virtualization. 
+            Remove this element if your application requires this virtualization for backwards
+            compatibility.
+        -->
+        <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows Vista -->
+      <!--<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />-->
+
+      <!-- Windows 7 -->
+      <!--<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />-->
+
+      <!-- Windows 8 -->
+      <!--<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />-->
+
+      <!-- Windows 8.1 -->
+      <!--<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />-->
+
+      <!-- Windows 10 -->
+      <!--<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />-->
+
+    </application>
+  </compatibility>
+
+  <!-- Indicates that the application is DPI-aware and will not be automatically scaled by Windows at higher
+       DPIs. Windows Presentation Foundation (WPF) applications are automatically DPI-aware and do not need 
+       to opt in. Windows Forms applications targeting .NET Framework 4.6 that opt into this setting, should 
+       also set the 'EnableWindowsFormsHighDpiAutoResizing' setting to 'true' in their app.config. -->
+  <!--
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+    </windowsSettings>
+  </application>
+  -->
+
+  <!-- Enable themes for Windows common controls and dialogs (Windows XP and later) -->
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity
+          type="win32"
+          name="Microsoft.Windows.Common-Controls"
+          version="6.0.0.0"
+          processorArchitecture="*"
+          publicKeyToken="6595b64144ccf1df"
+          language="*"
+        />
+    </dependentAssembly>
+  </dependency>
+
+</assembly>
@@ -0,0 +1,9 @@
+<Application x:Class="Application"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:Dialogs"
+             StartupUri="Window1.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,6 @@
+Class Application
+
+    ' Application-level events, such as Startup, Exit, and DispatcherUnhandledException
+    ' can be handled in this file.
+
+End Class
@@ -0,0 +1,11 @@
+Imports System.Windows
+
+'The ThemeInfo attribute describes where any theme specific and generic resource dictionaries can be found.
+'1st parameter: where theme specific resource dictionaries are located
+'(used if a resource is not found in the page,
+' or application resource dictionaries)
+
+'2nd parameter: where the generic resource dictionary is located
+'(used if a resource is not found in the page,
+'app, and any theme specific resource dictionaries)
+<Assembly: ThemeInfo(ResourceDictionaryLocation.None, ResourceDictionaryLocation.SourceAssembly)>
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RootNamespace>Dialogs</RootNamespace>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Import Include="System.Windows" />
+    <Import Include="System.Windows.Controls" />
+    <Import Include="System.Windows.Data" />
+    <Import Include="System.Windows.Documents" />
+    <Import Include="System.Windows.Input" />
+    <Import Include="System.Windows.Media" />
+    <Import Include="System.Windows.Media.Imaging" />
+    <Import Include="System.Windows.Navigation" />
+    <Import Include="System.Windows.Shapes" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,26 @@
+Imports System.Globalization
+
+Public Class MarginValidationRule
+    Inherits ValidationRule
+
+    Public Property MinMargin As Double
+    Public Property MaxMargin As Double
+
+    Public Overrides Function Validate(value As Object, cultureInfo As CultureInfo) As ValidationResult
+        Dim margin As Double
+
+        ' Is it a number?
+        If Not Double.TryParse(DirectCast(value, String), margin) Then
+            Return New ValidationResult(False, "Not a number")
+        End If
+
+        ' Is it in range
+        If margin < MinMargin Or margin > MaxMargin Then
+            Return New ValidationResult(False, $"Margin must be between {MinMargin} and {MaxMargin}")
+        End If
+
+        Return New ValidationResult(True, Nothing)
+
+    End Function
+
+End Class
@@ -0,0 +1,115 @@
+<Window x:Class="Margins"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Dialogs"
+        Title="Margins"
+        Closing="Window_Closing"
+        MinHeight="200"
+        MinWidth="300"
+        SizeToContent="WidthAndHeight"
+        ResizeMode="CanResizeWithGrip"
+        ShowInTaskbar="False"
+        WindowStartupLocation="CenterOwner"
+        WindowStyle="ToolWindow"
+        FocusManager.FocusedElement="{Binding ElementName=leftMarginTextBox}">
+    <Grid>
+
+        <Grid.Resources>
+            <Style TargetType="{x:Type Grid}">
+                <Setter Property="Margin" Value="10" />
+            </Style>
+            <Style TargetType="{x:Type Label}">
+                <Setter Property="Margin" Value="0,3,5,5" />
+                <Setter Property="Padding" Value="0,0,0,5" />
+            </Style>
+            <Style TargetType="{x:Type TextBox}">
+                <Setter Property="Margin" Value="0,0,0,5" />
+                <Style.Triggers>
+                    <Trigger Property="Validation.HasError" Value="true">
+                        <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>
+                    </Trigger>
+                </Style.Triggers>
+            </Style>
+            <Style TargetType="{x:Type StackPanel}">
+                <Setter Property="Orientation" Value="Horizontal" />
+                <Setter Property="HorizontalAlignment" Value="Right" />
+            </Style>
+            <Style TargetType="{x:Type Button}">
+                <Setter Property="Width" Value="70" />
+                <Setter Property="Height" Value="25" />
+                <Setter Property="Margin" Value="5,0,0,0" />
+            </Style>
+        </Grid.Resources>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition />
+        </Grid.RowDefinitions>
+
+        <!-- Left Margin -->
+        <Label Grid.Column="0" Grid.Row="0">Left Margin:</Label>
+        <TextBox Name="leftMarginTextBox" Grid.Column="1" Grid.Row="0">
+            <TextBox.Text>
+                <Binding Path="Left" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Top Margin -->
+        <Label Grid.Column="0" Grid.Row="1">Top Margin:</Label>
+        <TextBox Name="topMarginTextBox" Grid.Column="1" Grid.Row="1">
+            <TextBox.Text>
+                <Binding Path="Top" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Right Margin -->
+        <Label Grid.Column="0" Grid.Row="2">Right Margin:</Label>
+        <TextBox Name="rightMarginTextBox" Grid.Column="1" Grid.Row="2">
+            <TextBox.Text>
+                <Binding Path="Right" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Bottom Margin -->
+        <Label Grid.Column="0" Grid.Row="3">Bottom Margin:</Label>
+        <TextBox Name="bottomMarginTextBox" Grid.Column="1" Grid.Row="3">
+            <TextBox.Text>
+                <Binding Path="Bottom" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Accept or Cancel -->
+        <StackPanel Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="4">
+            <Button Name="okButton" IsDefault="True" Click="okButton_Click">OK</Button>
+            <Button Name="cancelButton" IsCancel="True">Cancel</Button>
+        </StackPanel>
+
+    </Grid >
+</Window>
@@ -0,0 +1,15 @@
+Public Class Margins
+    Private Sub okButton_Click(sender As Object, e As RoutedEventArgs)
+
+    End Sub
+
+    '<CancelAndHide>
+    Private Sub Window_Closing(sender As Object, e As ComponentModel.CancelEventArgs)
+        'First, cancel the window closure
+        e.Cancel = True
+
+        'Next, hide the window
+        Hide()
+    End Sub
+    '</CancelAndHide>
+End Class
@@ -0,0 +1,16 @@
+<Window x:Class="Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Dialogs"
+        mc:Ignorable="d"
+        Title="Names" Height="180" Width="260">
+    <StackPanel>
+        <Button>Message Box</Button>
+        <Button>Save file</Button>
+        <Button>Open file</Button>
+        <Button>Print</Button>
+        <Button Click="formatMarginsButton_Click" Content="_Margins..."/>
+    </StackPanel>
+</Window>
@@ -0,0 +1,45 @@
+Public Class Window1
+    '<DialogResultButtons>
+    Private Sub okButton_Click(sender As Object, e As RoutedEventArgs)
+        DialogResult = True
+    End Sub
+
+    Private Sub cancelButton_Click(sender As Object, e As RoutedEventArgs)
+        DialogResult = False
+    End Sub
+    '</DialogResultButtons>
+
+    Private Sub Method1()
+        '<HandleClosing>
+        Dim marginsWindow As New Margins
+
+        AddHandler marginsWindow.Closed, Sub(sender As Object, e As EventArgs)
+                                             MessageBox.Show($"You closed the margins window! It had the title of {marginsWindow.Title}")
+                                         End Sub
+
+        marginsWindow.Show()
+        '</HandleClosing>
+    End Sub
+
+    Private Sub formatMarginsButton_Click(sender As Object, e As RoutedEventArgs)
+        Method1()
+    End Sub
+
+    Private Sub Method2()
+        '<HandleDialogResponse>
+        Dim marginsWindow As New Margins
+
+        Dim result As Boolean? = marginsWindow.ShowDialog()
+
+        If result = True Then
+            ' User accepted the dialog box
+            MessageBox.Show("Your request will be processed.")
+        Else
+            ' User cancelled the dialog box
+            MessageBox.Show("Sorry it didn't work out, we'll try again later.")
+        End If
+
+        marginsWindow.Show()
+        '</HandleDialogResponse>
+    End Sub
+End Class
@@ -0,0 +1,9 @@
+<Application x:Class="CloseWindows.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:CloseWindows"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,16 @@
+using System.Windows;
+
+namespace CloseWindows
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // Create the window
+            Window1 window = new Window1();
+
+            // Open the window
+            window.Show();
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Controls;
+
+namespace CloseWindows
+{
+    public class MarginValidationRule : ValidationRule
+    {
+        public double MinMargin { get; set; }
+        public double MaxMargin { get; set; }
+
+        public override ValidationResult Validate(object value, CultureInfo cultureInfo)
+        {
+            double margin;
+
+            // Is a number?
+            if (!double.TryParse((string)value, out margin))
+            {
+                return new ValidationResult(false, "Not a number.");
+            }
+
+            // Is in range?
+            if ((margin < MinMargin) || (margin > MaxMargin))
+            {
+                var msg = $"Margin must be between {MinMargin} and {MaxMargin}.";
+                return new ValidationResult(false, msg);
+            }
+
+            // Number is valid
+            return new ValidationResult(true, null);
+        }
+    }
+}
@@ -0,0 +1,115 @@
+<Window x:Class="CloseWindows.Margins"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CloseWindows"
+        Title="Margins"
+        MinHeight="200"
+        MinWidth="300"
+        SizeToContent="WidthAndHeight"
+        ResizeMode="CanResizeWithGrip"
+        ShowInTaskbar="False"
+        WindowStartupLocation="CenterOwner"
+        WindowStyle="ToolWindow"
+        Closing="Window_Closing"
+        FocusManager.FocusedElement="{Binding ElementName=leftMarginTextBox}">
+    <Grid>
+
+        <Grid.Resources>
+            <Style TargetType="{x:Type Grid}">
+                <Setter Property="Margin" Value="10" />
+            </Style>
+            <Style TargetType="{x:Type Label}">
+                <Setter Property="Margin" Value="0,3,5,5" />
+                <Setter Property="Padding" Value="0,0,0,5" />
+            </Style>
+            <Style TargetType="{x:Type TextBox}">
+                <Setter Property="Margin" Value="0,0,0,5" />
+                <Style.Triggers>
+                    <Trigger Property="Validation.HasError" Value="true">
+                        <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>
+                    </Trigger>
+                </Style.Triggers>
+            </Style>
+            <Style TargetType="{x:Type StackPanel}">
+                <Setter Property="Orientation" Value="Horizontal" />
+                <Setter Property="HorizontalAlignment" Value="Right" />
+            </Style>
+            <Style TargetType="{x:Type Button}">
+                <Setter Property="Width" Value="70" />
+                <Setter Property="Height" Value="25" />
+                <Setter Property="Margin" Value="5,0,0,0" />
+            </Style>
+        </Grid.Resources>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition />
+        </Grid.RowDefinitions>
+
+        <!-- Left Margin -->
+        <Label Grid.Column="0" Grid.Row="0">Left Margin:</Label>
+        <TextBox Name="leftMarginTextBox" Grid.Column="1" Grid.Row="0">
+            <TextBox.Text>
+                <Binding Path="Left" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Top Margin -->
+        <Label Grid.Column="0" Grid.Row="1">Top Margin:</Label>
+        <TextBox Name="topMarginTextBox" Grid.Column="1" Grid.Row="1">
+            <TextBox.Text>
+                <Binding Path="Top" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Right Margin -->
+        <Label Grid.Column="0" Grid.Row="2">Right Margin:</Label>
+        <TextBox Name="rightMarginTextBox" Grid.Column="1" Grid.Row="2">
+            <TextBox.Text>
+                <Binding Path="Right" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Bottom Margin -->
+        <Label Grid.Column="0" Grid.Row="3">Bottom Margin:</Label>
+        <TextBox Name="bottomMarginTextBox" Grid.Column="1" Grid.Row="3">
+            <TextBox.Text>
+                <Binding Path="Bottom" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Accept or Cancel -->
+        <StackPanel Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="4">
+            <Button Name="okButton" IsDefault="True" Click="okButton_Click">OK</Button>
+            <Button Name="cancelButton" IsCancel="True">Cancel</Button>
+        </StackPanel>
+
+    </Grid >
+</Window>
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace CloseWindows
+{
+    /// <summary>
+    /// Interaction logic for Margins.xaml
+    /// </summary>
+    public partial class Margins : Window
+    {
+        public Margins()
+        {
+            InitializeComponent();
+        }
+
+        private void okButton_Click(object sender, RoutedEventArgs e)
+        {
+            DialogResult = true;
+        }
+
+        // <CancelAndHide>
+        private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
+        {
+            // Cancel the closure
+            e.Cancel = true;
+
+            // Hide the window
+            Hide();
+        }
+        // </CancelAndHide>
+    }
+}
@@ -0,0 +1,44 @@
+<Window x:Class="CloseWindows.Menus"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CloseWindows"
+        mc:Ignorable="d"
+        Title="Simple Text Editor"
+        Width="400" Height="230">
+    <Grid>
+        <Grid.Resources>
+            <Style TargetType="{x:Type Button}">
+                <Setter Property="Width" Value="70" />
+                <Setter Property="Height" Value="25" />
+                <Setter Property="Margin" Value="5,0,0,0" />
+            </Style>
+        </Grid.Resources>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        <Menu>
+            <MenuItem Header="File">
+                <MenuItem Header="Open..." />
+                <Separator />
+                <MenuItem Header="Save" />
+                <MenuItem Header="Save As..." />
+            </MenuItem>
+        </Menu>
+        <TextBox Grid.Row="1" AcceptsReturn="True" TextWrapping="Wrap" Margin="5">
+            <TextBox.Text>This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. </TextBox.Text>
+        </TextBox>
+        <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right" Margin="5">
+            <Button Name="closeButton" Click="closeButton_Click">Close</Button>
+            <Button Name="saveButton" Click="saveButton_Click">Save</Button>
+            <Button Name="saveAsButton">Save As...</Button>
+            <Button x:Name="okButton" IsDefault="True" Content="OK" Click="okButton_Click"/>
+            <!--<CancelButton>-->
+            <Button x:Name="cancelButton" Content="Cancel" IsCancel="true"/>
+            <!--</CancelButton>-->
+        </StackPanel>
+    </Grid>
+</Window>
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace CloseWindows
+{
+    /// <summary>
+    /// Interaction logic for Menus.xaml
+    /// </summary>
+    public partial class Menus : Window
+    {
+        public Menus()
+        {
+            InitializeComponent();
+        }
+
+        // <CloseDialog>
+        private void okButton_Click(object sender, RoutedEventArgs e) =>
+            DialogResult = true;
+
+        private void cancelButton_Click(object sender, RoutedEventArgs e) =>
+            DialogResult = false;
+        // </CloseDialog>
+
+        // <CloseNormal>
+        private void closeButton_Click(object sender, RoutedEventArgs e) =>
+            Close();
+        // </CloseNormal>
+
+        // <Hide>
+        private void saveButton_Click(object sender, RoutedEventArgs e) =>
+            Hide();
+        // </Hide>
+    }
+}
@@ -0,0 +1,21 @@
+<Window x:Class="CloseWindows.Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CloseWindows"
+        Title="Window Example"
+        Width="300" Height="165">
+
+    <StackPanel>
+        <Button Click="formatMarginsButton_Click" Content="_Margins..."/>
+        <Button Click="showMenus_Click" Content="Menus" />
+        <StackPanel Orientation="Horizontal">
+            <Button Name="okButton" Click="okButton_Click">OK</Button>
+            <!-- <CancelButton> -->
+            <Button Name="cancelButton" IsCancel="True">Cancel</Button>
+            <!-- </CancelButton> -->
+        </StackPanel>
+    </StackPanel>
+
+</Window>
@@ -0,0 +1,36 @@
+using System.Windows;
+
+namespace CloseWindows
+{
+    public partial class Window1 : Window
+    {
+        public Window1()
+        {
+            InitializeComponent();
+        }
+
+        private void formatMarginsButton_Click(object sender, RoutedEventArgs e)
+        {
+            // <ShowDialog>
+            var window = new Margins();
+            window.Owner = this;
+            window.ShowDialog();
+            // </ShowDialog>
+        }
+
+        private void showMenus_Click(object sender, RoutedEventArgs e)
+        {
+            var menu = new Menus();
+            var result = menu.ShowDialog();
+            menu.Show();
+        }
+
+        // <DialogResultButtons>
+        private void okButton_Click(object sender, RoutedEventArgs e) =>
+            DialogResult = true;
+
+        private void cancelButton_Click(object sender, RoutedEventArgs e) =>
+            DialogResult = false;
+        // </DialogResultButtons>
+    }
+}
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+        <!-- UAC Manifest Options
+             If you want to change the Windows User Account Control level replace the 
+             requestedExecutionLevel node with one of the following.
+
+        <requestedExecutionLevel  level="asInvoker" uiAccess="false" />
+        <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
+        <requestedExecutionLevel  level="highestAvailable" uiAccess="false" />
+
+            Specifying requestedExecutionLevel element will disable file and registry virtualization. 
+            Remove this element if your application requires this virtualization for backwards
+            compatibility.
+        -->
+        <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows Vista -->
+      <!--<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />-->
+
+      <!-- Windows 7 -->
+      <!--<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />-->
+
+      <!-- Windows 8 -->
+      <!--<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />-->
+
+      <!-- Windows 8.1 -->
+      <!--<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />-->
+
+      <!-- Windows 10 -->
+      <!--<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />-->
+
+    </application>
+  </compatibility>
+
+  <!-- Indicates that the application is DPI-aware and will not be automatically scaled by Windows at higher
+       DPIs. Windows Presentation Foundation (WPF) applications are automatically DPI-aware and do not need 
+       to opt in. Windows Forms applications targeting .NET Framework 4.6 that opt into this setting, should 
+       also set the 'EnableWindowsFormsHighDpiAutoResizing' setting to 'true' in their app.config. -->
+  <!--
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+    </windowsSettings>
+  </application>
+  -->
+
+  <!-- Enable themes for Windows common controls and dialogs (Windows XP and later) -->
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity
+          type="win32"
+          name="Microsoft.Windows.Common-Controls"
+          version="6.0.0.0"
+          processorArchitecture="*"
+          publicKeyToken="6595b64144ccf1df"
+          language="*"
+        />
+    </dependentAssembly>
+  </dependency>
+
+</assembly>
@@ -0,0 +1,9 @@
+<Application x:Class="Application"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:CloseWindows"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,11 @@
+Class Application
+
+    Private Sub Application_Startup(sender As Object, e As StartupEventArgs)
+        ' Create the window
+        Dim window As New Window1
+
+        ' Open the window
+        window.Show()
+    End Sub
+
+End Class
@@ -0,0 +1,11 @@
+Imports System.Windows
+
+'The ThemeInfo attribute describes where any theme specific and generic resource dictionaries can be found.
+'1st parameter: where theme specific resource dictionaries are located
+'(used if a resource is not found in the page,
+' or application resource dictionaries)
+
+'2nd parameter: where the generic resource dictionary is located
+'(used if a resource is not found in the page,
+'app, and any theme specific resource dictionaries)
+<Assembly: ThemeInfo(ResourceDictionaryLocation.None, ResourceDictionaryLocation.SourceAssembly)>
@@ -0,0 +1,3 @@
+Public Class Class1
+
+End Class
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RootNamespace>CloseWindows</RootNamespace>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Import Include="System.Windows" />
+    <Import Include="System.Windows.Controls" />
+    <Import Include="System.Windows.Data" />
+    <Import Include="System.Windows.Documents" />
+    <Import Include="System.Windows.Input" />
+    <Import Include="System.Windows.Media" />
+    <Import Include="System.Windows.Media.Imaging" />
+    <Import Include="System.Windows.Navigation" />
+    <Import Include="System.Windows.Shapes" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,26 @@
+Imports System.Globalization
+
+Public Class MarginValidationRule
+    Inherits ValidationRule
+
+    Public Property MinMargin As Double
+    Public Property MaxMargin As Double
+
+    Public Overrides Function Validate(value As Object, cultureInfo As CultureInfo) As ValidationResult
+        Dim margin As Double
+
+        ' Is it a number?
+        If Not Double.TryParse(DirectCast(value, String), margin) Then
+            Return New ValidationResult(False, "Not a number")
+        End If
+
+        ' Is it in range
+        If margin < MinMargin Or margin > MaxMargin Then
+            Return New ValidationResult(False, $"Margin must be between {MinMargin} and {MaxMargin}")
+        End If
+
+        Return New ValidationResult(True, Nothing)
+
+    End Function
+
+End Class
@@ -0,0 +1,115 @@
+<Window x:Class="Margins"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CloseWindows"
+        Title="Margins"
+        MinHeight="200"
+        MinWidth="300"
+        SizeToContent="WidthAndHeight"
+        ResizeMode="CanResizeWithGrip"
+        ShowInTaskbar="False"
+        WindowStartupLocation="CenterOwner"
+        WindowStyle="ToolWindow"
+        Closing="Window_Closing"
+        FocusManager.FocusedElement="{Binding ElementName=leftMarginTextBox}">
+    <Grid>
+
+        <Grid.Resources>
+            <Style TargetType="{x:Type Grid}">
+                <Setter Property="Margin" Value="10" />
+            </Style>
+            <Style TargetType="{x:Type Label}">
+                <Setter Property="Margin" Value="0,3,5,5" />
+                <Setter Property="Padding" Value="0,0,0,5" />
+            </Style>
+            <Style TargetType="{x:Type TextBox}">
+                <Setter Property="Margin" Value="0,0,0,5" />
+                <Style.Triggers>
+                    <Trigger Property="Validation.HasError" Value="true">
+                        <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/>
+                    </Trigger>
+                </Style.Triggers>
+            </Style>
+            <Style TargetType="{x:Type StackPanel}">
+                <Setter Property="Orientation" Value="Horizontal" />
+                <Setter Property="HorizontalAlignment" Value="Right" />
+            </Style>
+            <Style TargetType="{x:Type Button}">
+                <Setter Property="Width" Value="70" />
+                <Setter Property="Height" Value="25" />
+                <Setter Property="Margin" Value="5,0,0,0" />
+            </Style>
+        </Grid.Resources>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="Auto" />
+            <ColumnDefinition />
+        </Grid.ColumnDefinitions>
+
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition />
+        </Grid.RowDefinitions>
+
+        <!-- Left Margin -->
+        <Label Grid.Column="0" Grid.Row="0">Left Margin:</Label>
+        <TextBox Name="leftMarginTextBox" Grid.Column="1" Grid.Row="0">
+            <TextBox.Text>
+                <Binding Path="Left" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Top Margin -->
+        <Label Grid.Column="0" Grid.Row="1">Top Margin:</Label>
+        <TextBox Name="topMarginTextBox" Grid.Column="1" Grid.Row="1">
+            <TextBox.Text>
+                <Binding Path="Top" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Right Margin -->
+        <Label Grid.Column="0" Grid.Row="2">Right Margin:</Label>
+        <TextBox Name="rightMarginTextBox" Grid.Column="1" Grid.Row="2">
+            <TextBox.Text>
+                <Binding Path="Right" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Bottom Margin -->
+        <Label Grid.Column="0" Grid.Row="3">Bottom Margin:</Label>
+        <TextBox Name="bottomMarginTextBox" Grid.Column="1" Grid.Row="3">
+            <TextBox.Text>
+                <Binding Path="Bottom" UpdateSourceTrigger="PropertyChanged">
+                    <Binding.ValidationRules>
+                        <local:MarginValidationRule MinMargin="0" MaxMargin="10" />
+                    </Binding.ValidationRules>
+                </Binding>
+            </TextBox.Text>
+        </TextBox>
+
+        <!-- Accept or Cancel -->
+        <StackPanel Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="4">
+            <Button Name="okButton" IsDefault="True" Click="okButton_Click">OK</Button>
+            <Button Name="cancelButton" IsCancel="True">Cancel</Button>
+        </StackPanel>
+
+    </Grid >
+</Window>
@@ -0,0 +1,15 @@
+Public Class Margins
+    Private Sub okButton_Click(sender As Object, e As RoutedEventArgs)
+
+    End Sub
+
+    '<CancelAndHide>
+    Private Sub Window_Closing(sender As Object, e As ComponentModel.CancelEventArgs)
+        ' Cancel the closure
+        e.Cancel = True
+
+        ' Hide the window
+        Hide()
+    End Sub
+    '</CancelAndHide>
+End Class
@@ -0,0 +1,44 @@
+<Window x:Class="Menus"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CloseWindows"
+        mc:Ignorable="d"
+            Title="Simple Text Editor"
+        Width="400" Height="230">
+    <Grid>
+        <Grid.Resources>
+            <Style TargetType="{x:Type Button}">
+                <Setter Property="Width" Value="70" />
+                <Setter Property="Height" Value="25" />
+                <Setter Property="Margin" Value="5,0,0,0" />
+            </Style>
+        </Grid.Resources>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        <Menu>
+            <MenuItem Header="File">
+                <MenuItem Header="Open..." />
+                <Separator />
+                <MenuItem Header="Save" />
+                <MenuItem Header="Save As..." />
+            </MenuItem>
+        </Menu>
+        <TextBox Grid.Row="1" AcceptsReturn="True" TextWrapping="Wrap" Margin="5">
+            <TextBox.Text>This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor. This is a text editor.</TextBox.Text>
+        </TextBox>
+        <StackPanel Grid.Row="2" Orientation="Horizontal" HorizontalAlignment="Right" Margin="5">
+            <Button Name="closeButton" Click="closeButton_Click">Close</Button>
+            <Button Name="saveButton" Click="saveButton_Click">Save</Button>
+            <Button Name="saveAsButton">Save As...</Button>
+            <Button x:Name="okButton" IsDefault="True" Content="OK" Click="okButton_Click"/>
+            <!--<CancelButton>-->
+            <Button x:Name="cancelButton" Content="Cancel" IsCancel="true"/>
+            <!--</CancelButton>-->
+        </StackPanel>
+    </Grid>
+</Window>
@@ -0,0 +1,23 @@
+Public Class Menus
+    '<CloseDialog>
+    Private Sub okButton_Click(sender As Object, e As RoutedEventArgs)
+        DialogResult = True
+    End Sub
+
+    Private Sub cancelButton_Click(sender As Object, e As RoutedEventArgs)
+        DialogResult = False
+    End Sub
+    '</CloseDialog>
+
+    '<CloseNormal>
+    Private Sub closeButton_Click(sender As Object, e As RoutedEventArgs)
+        Close()
+    End Sub
+    '</CloseNormal>
+
+    '<Hide>
+    Private Sub saveButton_Click(sender As Object, e As RoutedEventArgs)
+        Hide()
+    End Sub
+    '</Hide>
+End Class
@@ -0,0 +1,15 @@
+<Window x:Class="Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:CloseWindows"
+        mc:Ignorable="d"
+        Title="Names" Height="180" Width="260">
+    <StackPanel>
+        <Button Click="Button_Click">Message Box</Button>
+        <Button Click="Save_Click">Save file</Button>
+        <Button Click="Open_Click">Open file</Button>
+        <Button Click="Print_Click">Print</Button>
+    </StackPanel>
+</Window>
@@ -0,0 +1,79 @@
+Public Class Window1
+    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
+        '<YesNoCancel>
+        Dim messageBoxText As String = "Do you want to save changes?"
+        Dim caption As String = "Word Processor"
+        Dim Button As MessageBoxButton = MessageBoxButton.YesNoCancel
+        Dim Icon As MessageBoxImage = MessageBoxImage.Warning
+        Dim result As MessageBoxResult
+
+        '<MessageBoxShow>
+        result = MessageBox.Show(messageBoxText, caption, Button, Icon)
+        '</YesNoCancel>
+
+        Select Case result
+            Case MessageBoxResult.Cancel
+                ' User pressed Cancel
+            Case MessageBoxResult.Yes
+                ' User pressed Yes
+            Case MessageBoxResult.No
+                ' User pressed No
+        End Select
+        '</MessageBoxShow>
+    End Sub
+
+    Private Sub Save_Click(sender As Object, e As RoutedEventArgs)
+        '<SaveFile>
+        ' Configure save file dialog box
+        Dim dialog As New Microsoft.Win32.SaveFileDialog()
+        dialog.FileName = "Document" ' Default file name
+        dialog.DefaultExt = ".txt" ' Default file extension
+        dialog.Filter = "Text documents (.txt)|*.txt" ' Filter files by extension
+
+        ' Show save file dialog box
+        Dim result As Boolean? = dialog.ShowDialog()
+
+        ' Process save file dialog box results
+        If result = True Then
+            ' Save document
+            Dim filename As String = dialog.FileName
+        End If
+        '</SaveFile>
+    End Sub
+
+    Private Sub Open_Click(sender As Object, e As RoutedEventArgs)
+        '<OpenFile>
+        ' Configure open file dialog box
+        Dim dialog As New Microsoft.Win32.OpenFileDialog()
+        dialog.FileName = "Document" ' Default file name
+        dialog.DefaultExt = ".txt" ' Default file extension
+        dialog.Filter = "Text documents (.txt)|*.txt" ' Filter files by extension
+
+        ' Show open file dialog box
+        Dim result As Boolean? = dialog.ShowDialog()
+
+        ' Process open file dialog box results
+        If result = True Then
+            ' Open document
+            Dim filename As String = dialog.FileName
+        End If
+        '</OpenFile>
+    End Sub
+
+    Private Sub Print_Click(sender As Object, e As RoutedEventArgs)
+        '<Print>
+        ' Configure printer dialog box
+        Dim dialog As New System.Windows.Controls.PrintDialog()
+        dialog.PageRangeSelection = System.Windows.Controls.PageRangeSelection.AllPages
+        dialog.UserPageRangeEnabled = True
+
+        ' Show save file dialog box
+        Dim result As Boolean? = dialog.ShowDialog()
+
+        ' Process save file dialog box results
+        If result = True Then
+            ' Print document
+        End If
+        '</Print>
+    End Sub
+End Class
@@ -0,0 +1,7 @@
+<Application x:Class="MainApp.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:MainApp"
+             StartupUri="Window1.xaml">
+    
+</Application>
@@ -0,0 +1,22 @@
+using System.Windows;
+
+namespace MainApp
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // <MainWindowDirect>
+            Application.Current.MainWindow = new Window2();
+
+            Application.Current.MainWindow.Show();
+            // </MainWindowDirect>
+
+            // <MainWindowIndirect>
+            var appWindow = new Window2();
+
+            appWindow.Show();
+            // </MainWindowIndirect>
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,12 @@
+<Window x:Class="MainApp.Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:MainApp"
+        Width="500" Height="165">
+
+    <!-- Client area containing the content of the window -->
+    <Button Click="Button_Click">Click This Button</Button>
+
+</Window>
@@ -0,0 +1,17 @@
+using System.Windows;
+
+namespace MainApp
+{
+    public partial class Window1 : Window
+    {
+        public Window1()
+        {
+            InitializeComponent();
+        }
+
+        // <GetMainWindow>
+        private void Button_Click(object sender, RoutedEventArgs e) =>
+            MessageBox.Show($"The main window's title is: {Application.Current.MainWindow.Title}");
+        // </GetMainWindow>
+    }
+}
@@ -0,0 +1,12 @@
+<Window x:Class="MainApp.Window2"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:MainApp"
+        mc:Ignorable="d"
+        Title="Window2" Height="450" Width="800">
+    <Grid>
+        <TextBlock Text="Hi! I'm the second window!" />
+    </Grid>
+</Window>
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace MainApp
+{
+    /// <summary>
+    /// Interaction logic for Window2.xaml
+    /// </summary>
+    public partial class Window2 : Window
+    {
+        public Window2()
+        {
+            InitializeComponent();
+        }
+    }
+}
@@ -0,0 +1,9 @@
+<Application x:Class="Application"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-MainApppace:MainApp"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,17 @@
+Class Application
+
+    Private Sub Application_Startup(sender As Object, e As StartupEventArgs)
+        '<MainWindowDirect>
+        Application.Current.MainWindow = New Window2()
+
+        Application.Current.MainWindow.Show()
+        '</MainWindowDirect>
+
+        '<MainWindowIndirect>
+        Dim appWindow As New Window2()
+
+        appWindow.Show()
+        '</MainWindowIndirect>
+    End Sub
+
+End Class
@@ -0,0 +1,11 @@
+Imports System.Windows
+
+'The ThemeInfo attribute describes where any theme specific and generic resource dictionaries can be found.
+'1st parameter: where theme specific resource dictionaries are located
+'(used if a resource is not found in the page,
+' or application resource dictionaries)
+
+'2nd parameter: where the generic resource dictionary is located
+'(used if a resource is not found in the page,
+'app, and any theme specific resource dictionaries)
+<Assembly: ThemeInfo(ResourceDictionaryLocation.None, ResourceDictionaryLocation.SourceAssembly)>
@@ -0,0 +1,3 @@
+Public Class Class1
+
+End Class
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RootNamespace>WindowsOverview</RootNamespace>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Import Include="System.Windows" />
+    <Import Include="System.Windows.Controls" />
+    <Import Include="System.Windows.Data" />
+    <Import Include="System.Windows.Documents" />
+    <Import Include="System.Windows.Input" />
+    <Import Include="System.Windows.Media" />
+    <Import Include="System.Windows.Media.Imaging" />
+    <Import Include="System.Windows.Navigation" />
+    <Import Include="System.Windows.Shapes" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,11 @@
+<Window x:Class="Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WindowsOverview"
+        mc:Ignorable="d"
+        Title="Names" Height="180" Width="260">
+    <!-- Client area containing the content of the window -->
+    <Button Click="Button_Click">Click This Button</Button>
+</Window>
@@ -0,0 +1,7 @@
+Public Class Window1
+    '<GetMainWindow>
+    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
+        MessageBox.Show($"The main window's title is: {Application.Current.MainWindow.Title}")
+    End Sub
+    '</GetMainWindow>
+End Class
@@ -0,0 +1,12 @@
+<Window x:Class="Window2"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WindowsOverview"
+        mc:Ignorable="d"
+        Title="Window2" Height="450" Width="800">
+    <Grid>
+        
+    </Grid>
+</Window>
@@ -0,0 +1,3 @@
+Public Class Window2
+
+End Class
@@ -0,0 +1,9 @@
+<Application x:Class="MainApp.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:MainApp">
+
+    <Application.MainWindow>
+        <local:Window2 Visibility="Visible" />
+    </Application.MainWindow>
+</Application>
@@ -0,0 +1,12 @@
+using System.Windows;
+
+namespace MainApp
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,12 @@
+<Window x:Class="MainApp.Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:MainApp"
+        Width="500" Height="165">
+
+    <!-- Client area containing the content of the window -->
+    <Button Click="Button_Click">Click This Button</Button>
+
+</Window>
@@ -0,0 +1,17 @@
+using System.Windows;
+
+namespace MainApp
+{
+    public partial class Window1 : Window
+    {
+        public Window1()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            
+        }
+    }
+}
@@ -0,0 +1,12 @@
+<Window x:Class="MainApp.Window2"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:MainApp"
+        mc:Ignorable="d"
+        Title="Window2" Height="450" Width="800">
+    <Grid>
+        <TextBlock Text="Hi! I'm the second window!" />
+    </Grid>
+</Window>
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace MainApp
+{
+    /// <summary>
+    /// Interaction logic for Window2.xaml
+    /// </summary>
+    public partial class Window2 : Window
+    {
+        public Window2()
+        {
+            InitializeComponent();
+        }
+    }
+}
@@ -0,0 +1,9 @@
+<Application x:Class="WindowsOverview.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:WindowsOverview"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,16 @@
+using System.Windows;
+
+namespace WindowsOverview
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // Create the window
+            Window1 window = new Window1();
+
+            // Open the window
+            window.Show();
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,16 @@
+<Window x:Class="WindowsOverview.Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WindowsOverview"
+        Width="500" Height="165">
+
+    <StackPanel>
+        <Button Click="Button_Click">Message Box</Button>
+        <Button Click="Save_Click">Save file</Button>
+        <Button Click="Open_Click">Open file</Button>
+        <Button Click="Print_Click">Print</Button>
+    </StackPanel>
+
+</Window>
@@ -0,0 +1,101 @@
+using System.Windows;
+
+namespace WindowsOverview
+{
+    public partial class Window1 : Window
+    {
+        public Window1()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            //<YesNoCancel>
+            string messageBoxText = "Do you want to save changes?";
+            string caption = "Word Processor";
+            MessageBoxButton button = MessageBoxButton.YesNoCancel;
+            MessageBoxImage icon = MessageBoxImage.Warning;
+            MessageBoxResult result;
+
+            //<MessageBoxShow>
+            result = MessageBox.Show(messageBoxText, caption, button, icon);
+            //</YesNoCancel>
+
+            switch (result)
+            {
+                case MessageBoxResult.Cancel:
+                    // User pressed Cancel
+                    break;
+                case MessageBoxResult.Yes:
+                    // User pressed Yes
+                    break;
+                case MessageBoxResult.No:
+                    // User pressed No
+                    break;
+            }
+            //</MessageBoxShow>
+        }
+
+        private void Save_Click(object sender, RoutedEventArgs e)
+        {
+            //<SaveFile>
+            // Configure save file dialog box
+            var dialog = new Microsoft.Win32.SaveFileDialog();
+            dialog.FileName = "Document"; // Default file name
+            dialog.DefaultExt = ".txt"; // Default file extension
+            dialog.Filter = "Text documents (.txt)|*.txt"; // Filter files by extension
+
+            // Show save file dialog box
+            bool? result = dialog.ShowDialog();
+
+            // Process save file dialog box results
+            if (result == true)
+            {
+                // Save document
+                string filename = dialog.FileName;
+            }
+            //</SaveFile>
+        }
+
+        private void Open_Click(object sender, RoutedEventArgs e)
+        {
+            //<OpenFile>
+            // Configure open file dialog box
+            var dialog = new Microsoft.Win32.OpenFileDialog();
+            dialog.FileName = "Document"; // Default file name
+            dialog.DefaultExt = ".txt"; // Default file extension
+            dialog.Filter = "Text documents (.txt)|*.txt"; // Filter files by extension
+
+            // Show open file dialog box
+            bool? result = dialog.ShowDialog();
+
+            // Process open file dialog box results
+            if (result == true)
+            {
+                // Open document
+                string filename = dialog.FileName;
+            }
+            //</OpenFile>
+        }
+
+        private void Print_Click(object sender, RoutedEventArgs e)
+        {
+            //<Print>
+            // Configure printer dialog box
+            var dialog = new System.Windows.Controls.PrintDialog();
+            dialog.PageRangeSelection = System.Windows.Controls.PageRangeSelection.AllPages;
+            dialog.UserPageRangeEnabled = true;
+
+            // Show save file dialog box
+            bool? result = dialog.ShowDialog();
+
+            // Process save file dialog box results
+            if (result == true)
+            {
+                // Document was printed
+            }
+            //</Print>
+        }
+    }
+}
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+        <!-- UAC Manifest Options
+             If you want to change the Windows User Account Control level replace the 
+             requestedExecutionLevel node with one of the following.
+
+        <requestedExecutionLevel  level="asInvoker" uiAccess="false" />
+        <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
+        <requestedExecutionLevel  level="highestAvailable" uiAccess="false" />
+
+            Specifying requestedExecutionLevel element will disable file and registry virtualization. 
+            Remove this element if your application requires this virtualization for backwards
+            compatibility.
+        -->
+        <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows Vista -->
+      <!--<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />-->
+
+      <!-- Windows 7 -->
+      <!--<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />-->
+
+      <!-- Windows 8 -->
+      <!--<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />-->
+
+      <!-- Windows 8.1 -->
+      <!--<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />-->
+
+      <!-- Windows 10 -->
+      <!--<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />-->
+
+    </application>
+  </compatibility>
+
+  <!-- Indicates that the application is DPI-aware and will not be automatically scaled by Windows at higher
+       DPIs. Windows Presentation Foundation (WPF) applications are automatically DPI-aware and do not need 
+       to opt in. Windows Forms applications targeting .NET Framework 4.6 that opt into this setting, should 
+       also set the 'EnableWindowsFormsHighDpiAutoResizing' setting to 'true' in their app.config. -->
+  <!--
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+    </windowsSettings>
+  </application>
+  -->
+
+  <!-- Enable themes for Windows common controls and dialogs (Windows XP and later) -->
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity
+          type="win32"
+          name="Microsoft.Windows.Common-Controls"
+          version="6.0.0.0"
+          processorArchitecture="*"
+          publicKeyToken="6595b64144ccf1df"
+          language="*"
+        />
+    </dependentAssembly>
+  </dependency>
+
+</assembly>
@@ -0,0 +1,9 @@
+<Application x:Class="Application"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:Names"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,11 @@
+Class Application
+
+    Private Sub Application_Startup(sender As Object, e As StartupEventArgs)
+        ' Create the window
+        Dim window As New Window1
+
+        ' Open the window
+        window.Show()
+    End Sub
+
+End Class
@@ -0,0 +1,11 @@
+Imports System.Windows
+
+'The ThemeInfo attribute describes where any theme specific and generic resource dictionaries can be found.
+'1st parameter: where theme specific resource dictionaries are located
+'(used if a resource is not found in the page,
+' or application resource dictionaries)
+
+'2nd parameter: where the generic resource dictionary is located
+'(used if a resource is not found in the page,
+'app, and any theme specific resource dictionaries)
+<Assembly: ThemeInfo(ResourceDictionaryLocation.None, ResourceDictionaryLocation.SourceAssembly)>
@@ -0,0 +1,3 @@
+Public Class Class1
+
+End Class
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RootNamespace>WindowsOverview</RootNamespace>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Import Include="System.Windows" />
+    <Import Include="System.Windows.Controls" />
+    <Import Include="System.Windows.Data" />
+    <Import Include="System.Windows.Documents" />
+    <Import Include="System.Windows.Input" />
+    <Import Include="System.Windows.Media" />
+    <Import Include="System.Windows.Media.Imaging" />
+    <Import Include="System.Windows.Navigation" />
+    <Import Include="System.Windows.Shapes" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,15 @@
+<Window x:Class="Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WindowsOverview"
+        mc:Ignorable="d"
+        Title="Names" Height="180" Width="260">
+    <StackPanel>
+        <Button Click="Button_Click">Message Box</Button>
+        <Button Click="Save_Click">Save file</Button>
+        <Button Click="Open_Click">Open file</Button>
+        <Button Click="Print_Click">Print</Button>
+    </StackPanel>
+</Window>
@@ -0,0 +1,79 @@
+Public Class Window1
+    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
+        '<YesNoCancel>
+        Dim messageBoxText As String = "Do you want to save changes?"
+        Dim caption As String = "Word Processor"
+        Dim Button As MessageBoxButton = MessageBoxButton.YesNoCancel
+        Dim Icon As MessageBoxImage = MessageBoxImage.Warning
+        Dim result As MessageBoxResult
+
+        '<MessageBoxShow>
+        result = MessageBox.Show(messageBoxText, caption, Button, Icon)
+        '</YesNoCancel>
+
+        Select Case result
+            Case MessageBoxResult.Cancel
+                ' User pressed Cancel
+            Case MessageBoxResult.Yes
+                ' User pressed Yes
+            Case MessageBoxResult.No
+                ' User pressed No
+        End Select
+        '</MessageBoxShow>
+    End Sub
+
+    Private Sub Save_Click(sender As Object, e As RoutedEventArgs)
+        '<SaveFile>
+        ' Configure save file dialog box
+        Dim dialog As New Microsoft.Win32.SaveFileDialog()
+        dialog.FileName = "Document" ' Default file name
+        dialog.DefaultExt = ".txt" ' Default file extension
+        dialog.Filter = "Text documents (.txt)|*.txt" ' Filter files by extension
+
+        ' Show save file dialog box
+        Dim result As Boolean? = dialog.ShowDialog()
+
+        ' Process save file dialog box results
+        If result = True Then
+            ' Save document
+            Dim filename As String = dialog.FileName
+        End If
+        '</SaveFile>
+    End Sub
+
+    Private Sub Open_Click(sender As Object, e As RoutedEventArgs)
+        '<OpenFile>
+        ' Configure open file dialog box
+        Dim dialog As New Microsoft.Win32.OpenFileDialog()
+        dialog.FileName = "Document" ' Default file name
+        dialog.DefaultExt = ".txt" ' Default file extension
+        dialog.Filter = "Text documents (.txt)|*.txt" ' Filter files by extension
+
+        ' Show open file dialog box
+        Dim result As Boolean? = dialog.ShowDialog()
+
+        ' Process open file dialog box results
+        If result = True Then
+            ' Open document
+            Dim filename As String = dialog.FileName
+        End If
+        '</OpenFile>
+    End Sub
+
+    Private Sub Print_Click(sender As Object, e As RoutedEventArgs)
+        '<Print>
+        ' Configure printer dialog box
+        Dim dialog As New System.Windows.Controls.PrintDialog()
+        dialog.PageRangeSelection = System.Windows.Controls.PageRangeSelection.AllPages
+        dialog.UserPageRangeEnabled = True
+
+        ' Show save file dialog box
+        Dim result As Boolean? = dialog.ShowDialog()
+
+        ' Process save file dialog box results
+        If result = True Then
+            ' Document was printed
+        End If
+        '</Print>
+    End Sub
+End Class
@@ -0,0 +1,9 @@
+<Application x:Class="WindowsOverview.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:WindowsOverview"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,16 @@
+using System.Windows;
+
+namespace WindowsOverview
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // Create the window
+            Window1 window = new Window1();
+
+            // Open the window
+            window.Show();
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    
+  </PropertyGroup>
+
+</Project>
@@ -0,0 +1,17 @@
+<Window x:Class="WindowsOverview.Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WindowsOverview"
+        Width="500" Height="165">
+
+    <StackPanel>
+        <Button Click="Button_Click">Message Box</Button>
+        <Button Click="Button2_Click">Message Box screenshot</Button>
+        <Button Click="Alert_Click">Alert</Button>
+        <Button Click="Warning_Click">Warning</Button>
+        <Button Click="Prompt_Click">Prompt</Button>
+    </StackPanel>
+
+</Window>
@@ -0,0 +1,75 @@
+using System.Windows;
+
+namespace WindowsOverview
+{
+    public partial class Window1 : Window
+    {
+        public Window1()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            //<YesNoCancel>
+            string messageBoxText = "Do you want to save changes?";
+            string caption = "Word Processor";
+            MessageBoxButton button = MessageBoxButton.YesNoCancel;
+            MessageBoxImage icon = MessageBoxImage.Warning;
+            MessageBoxResult result;
+
+            //<MessageBoxShow>
+            result = MessageBox.Show(messageBoxText, caption, button, icon, MessageBoxResult.Yes);
+            //</YesNoCancel>
+
+            switch (result)
+            {
+                case MessageBoxResult.Cancel:
+                    // User pressed Cancel
+                    break;
+                case MessageBoxResult.Yes:
+                    // User pressed Yes
+                    break;
+                case MessageBoxResult.No:
+                    // User pressed No
+                    break;
+            }
+            //</MessageBoxShow>
+        }
+
+        private void Button2_Click(object sender, RoutedEventArgs e)
+        {
+            MessageBox.Show("Message to display to the user", "Window caption", MessageBoxButton.OK, MessageBoxImage.Question, MessageBoxResult.OK, MessageBoxOptions.RightAlign);
+        }
+
+        private void Alert_Click(object sender, RoutedEventArgs e)
+        {
+            //<AlertSimple>
+            MessageBox.Show("Unable to save file, try again.");
+            //</AlertSimple>
+            //<Alert>
+            MessageBox.Show("Unable to save file, try again.", "Save error", MessageBoxButton.OK, MessageBoxImage.Error);
+            //</Alert>
+        }
+
+        private void Warning_Click(object sender, RoutedEventArgs e)
+        {
+            //<Warning>
+            MessageBox.Show("If you close the next window without saving, your changes will be lost.", "Configuration", MessageBoxButton.OK, MessageBoxImage.Warning);
+            //</Warning>
+        }
+
+        private void Prompt_Click(object sender, RoutedEventArgs e)
+        {
+            //<Prompt>
+            if (MessageBox.Show("If the file save fails, do you want to automatically try again?",
+                                "Save file",
+                                MessageBoxButton.YesNo,
+                                MessageBoxImage.Question) == MessageBoxResult.Yes)
+            {
+                // Do something here
+            }
+            //</Prompt>
+        }
+    }
+}
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
+        <!-- UAC Manifest Options
+             If you want to change the Windows User Account Control level replace the 
+             requestedExecutionLevel node with one of the following.
+
+        <requestedExecutionLevel  level="asInvoker" uiAccess="false" />
+        <requestedExecutionLevel  level="requireAdministrator" uiAccess="false" />
+        <requestedExecutionLevel  level="highestAvailable" uiAccess="false" />
+
+            Specifying requestedExecutionLevel element will disable file and registry virtualization. 
+            Remove this element if your application requires this virtualization for backwards
+            compatibility.
+        -->
+        <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows Vista -->
+      <!--<supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />-->
+
+      <!-- Windows 7 -->
+      <!--<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />-->
+
+      <!-- Windows 8 -->
+      <!--<supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />-->
+
+      <!-- Windows 8.1 -->
+      <!--<supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />-->
+
+      <!-- Windows 10 -->
+      <!--<supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />-->
+
+    </application>
+  </compatibility>
+
+  <!-- Indicates that the application is DPI-aware and will not be automatically scaled by Windows at higher
+       DPIs. Windows Presentation Foundation (WPF) applications are automatically DPI-aware and do not need 
+       to opt in. Windows Forms applications targeting .NET Framework 4.6 that opt into this setting, should 
+       also set the 'EnableWindowsFormsHighDpiAutoResizing' setting to 'true' in their app.config. -->
+  <!--
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+    </windowsSettings>
+  </application>
+  -->
+
+  <!-- Enable themes for Windows common controls and dialogs (Windows XP and later) -->
+  <dependency>
+    <dependentAssembly>
+      <assemblyIdentity
+          type="win32"
+          name="Microsoft.Windows.Common-Controls"
+          version="6.0.0.0"
+          processorArchitecture="*"
+          publicKeyToken="6595b64144ccf1df"
+          language="*"
+        />
+    </dependentAssembly>
+  </dependency>
+
+</assembly>
@@ -0,0 +1,9 @@
+<Application x:Class="Application"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:Names"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,11 @@
+Class Application
+
+    Private Sub Application_Startup(sender As Object, e As StartupEventArgs)
+        ' Create the window
+        Dim window As New Window1
+
+        ' Open the window
+        window.Show()
+    End Sub
+
+End Class
@@ -0,0 +1,11 @@
+Imports System.Windows
+
+'The ThemeInfo attribute describes where any theme specific and generic resource dictionaries can be found.
+'1st parameter: where theme specific resource dictionaries are located
+'(used if a resource is not found in the page,
+' or application resource dictionaries)
+
+'2nd parameter: where the generic resource dictionary is located
+'(used if a resource is not found in the page,
+'app, and any theme specific resource dictionaries)
+<Assembly: ThemeInfo(ResourceDictionaryLocation.None, ResourceDictionaryLocation.SourceAssembly)>
@@ -0,0 +1,3 @@
+Public Class Class1
+
+End Class
@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RootNamespace>WindowsOverview</RootNamespace>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Import Include="System.Windows" />
+    <Import Include="System.Windows.Controls" />
+    <Import Include="System.Windows.Data" />
+    <Import Include="System.Windows.Documents" />
+    <Import Include="System.Windows.Input" />
+    <Import Include="System.Windows.Media" />
+    <Import Include="System.Windows.Media.Imaging" />
+    <Import Include="System.Windows.Navigation" />
+    <Import Include="System.Windows.Shapes" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,16 @@
+<Window x:Class="Window1"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:WindowsOverview"
+        mc:Ignorable="d"
+        Title="Names" Height="180" Width="260">
+    <StackPanel>
+        <Button Click="Button_Click">Message Box</Button>
+        <Button Click="Button2_Click">Message Box screenshot</Button>
+        <Button Click="Alert_Click">Alert</Button>
+        <Button Click="Warning_Click">Warning</Button>
+        <Button Click="Prompt_Click">Prompt</Button>
+    </StackPanel>
+</Window>
@@ -0,0 +1,56 @@
+Public Class Window1
+    Private Sub Button_Click(sender As Object, e As RoutedEventArgs)
+        '<YesNoCancel>
+        Dim messageBoxText As String = "Do you want to save changes?"
+        Dim caption As String = "Word Processor"
+        Dim Button As MessageBoxButton = MessageBoxButton.YesNoCancel
+        Dim Icon As MessageBoxImage = MessageBoxImage.Warning
+        Dim result As MessageBoxResult
+
+        '<MessageBoxShow>
+        result = MessageBox.Show(messageBoxText, caption, Button, Icon, MessageBoxResult.Yes)
+        '</YesNoCancel>
+
+        Select Case result
+            Case MessageBoxResult.Cancel
+                ' User pressed Cancel
+            Case MessageBoxResult.Yes
+                ' User pressed Yes
+            Case MessageBoxResult.No
+                ' User pressed No
+        End Select
+        '</MessageBoxShow>
+    End Sub
+
+    Private Sub Button2_Click(sender As Object, e As RoutedEventArgs)
+        MessageBox.Show("Message to display to the user", "Window caption", MessageBoxButton.OK, MessageBoxImage.Question, MessageBoxResult.OK, MessageBoxOptions.RightAlign)
+    End Sub
+
+    Private Sub Alert_Click(sender As Object, e As RoutedEventArgs)
+        '<AlertSimple>
+        MessageBox.Show("Unable to save file, try again.")
+        '</AlertSimple>
+        '<Alert>
+        MessageBox.Show("Unable to save file, try again.", "Save error", MessageBoxButton.OK, MessageBoxImage.Error)
+        '</Alert>
+    End Sub
+
+    Private Sub Warning_Click(sender As Object, e As RoutedEventArgs)
+        '<Warning>
+        MessageBox.Show("If you close the next window without saving, your changes will be lost.", "Configuration", MessageBoxButton.OK, MessageBoxImage.Warning)
+        '</Warning>
+    End Sub
+
+    Private Sub Prompt_Click(sender As Object, e As RoutedEventArgs)
+        '<Prompt>
+        If MessageBox.Show("If the file save fails, do you want to automatically try again?",
+                           "Save file",
+                           MessageBoxButton.YesNo,
+                           MessageBoxImage.Question) = MessageBoxResult.Yes Then
+
+            ' Do something here
+
+        End If
+        '</Prompt>
+    End Sub
+End Class
@@ -0,0 +1,9 @@
+<Application x:Class="DisplayWindows.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:DisplayWindows"
+             Startup="Application_Startup">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>
@@ -0,0 +1,16 @@
+using System.Windows;
+
+namespace DisplayWindows
+{
+    public partial class App : Application
+    {
+        private void Application_Startup(object sender, StartupEventArgs e)
+        {
+            // Create the window
+            Window1 window = new Window1();
+
+            // Open the window
+            window.Show();
+        }
+    }
+}
@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <ApplicationManifest>app.manifest</ApplicationManifest>
+    
+  </PropertyGroup>
+
+</Project>
--- a/Show More
+++ b/Show More