Add article, code projects, toc, and redirects (#1178)

Co-authored-by: Andy (Steve) De George <[email protected]>

dotnet-desktop-guide/net/wpf/properties/snippets/attached-properties-overview/vb/Application.xaml

@@ -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:CodeSampleVb"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

dotnet-desktop-guide/net/wpf/properties/snippets/attached-properties-overview/vb/Application.xaml.vb

@@ -0,0 +1,6 @@
+Class Application
+
+    ' Application-level events, such as Startup, Exit, and DispatcherUnhandledException
+    ' can be handled in this file.
+
+End Class

dotnet-desktop-guide/net/wpf/properties/snippets/attached-properties-overview/vb/AssemblyInfo.vb

@@ -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)>

dotnet-desktop-guide/net/wpf/properties/snippets/attached-properties-overview/vb/CodeSampleVb.vbproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RootNamespace>CodeSampleVb</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>

dotnet-desktop-guide/net/wpf/properties/snippets/attached-properties-overview/vb/MainWindow.xaml

@@ -0,0 +1,15 @@
+<Window x:Class="CodeSampleVb.MainWindow"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        Title="Attached Properties Overview" Height="100" Width="400">
+
+    <StackPanel>
+
+        <!--<SetAttachedPropertyInXaml>-->
+        <DockPanel>
+            <TextBox DockPanel.Dock="Top">Enter text</TextBox>
+        </DockPanel>
+        <!--</SetAttachedPropertyInXaml>-->
+
+    </StackPanel>
+</Window>

dotnet-desktop-guide/net/wpf/properties/snippets/attached-properties-overview/vb/MainWindow.xaml.vb

@@ -0,0 +1,55 @@
+Namespace CodeSampleVb
+
+    ' <summary>
+    ' Interaction logic for MainWindow.xaml.
+    ' </summary>
+    Partial Public Class MainWindow
+        Inherits Window
+
+        Public Sub New()
+            InitializeComponent()
+
+            SetAttachedPropertyInCode()
+        End Sub
+
+        Public Shared Sub SetAttachedPropertyInCode()
+            '<SetAttachedPropertyInCode>
+            Dim myDockPanel As DockPanel = New DockPanel()
+            Dim myTextBox As TextBox = New TextBox()
+            myTextBox.Text = "Enter text"
+
+            ' Add child element to the DockPanel.
+            myDockPanel.Children.Add(myTextBox)
+
+            ' Set the attached property value.
+            DockPanel.SetDock(myTextBox, Dock.Top)
+            '</SetAttachedPropertyInCode>
+        End Sub
+
+    End Class
+
+    '<RegisterAttachedProperty>
+    Public Class Aquarium
+        Inherits DependencyObject
+
+        ' Register an attached dependency property with the specified
+        ' property name, property type, owner type, and property metadata.
+        Public Shared ReadOnly HasFishProperty As DependencyProperty =
+            DependencyProperty.RegisterAttached("HasFish", GetType(Boolean), GetType(Aquarium),
+                New FrameworkPropertyMetadata(defaultValue:=False,
+                    flags:=FrameworkPropertyMetadataOptions.AffectsRender))
+
+        ' Declare a get accessor method.
+        Public Shared Function GetHasFish(target As UIElement) As Boolean
+            Return target.GetValue(HasFishProperty)
+        End Function
+
+        ' Declare a set accessor method.
+        Public Shared Sub SetHasFish(target As UIElement, value As Boolean)
+            target.SetValue(HasFishProperty, value)
+        End Sub
+
+    End Class
+    '</RegisterAttachedProperty>
+
+End Namespace