Add article, code projects, toc, and redirects (#1180)

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

dotnet-desktop-guide/net/wpf/properties/snippets/how-to-implement-a-dependency-property/vb/Application.xaml

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+<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/how-to-implement-a-dependency-property/vb/Application.xaml.vb

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+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/how-to-implement-a-dependency-property/vb/AssemblyInfo.vb

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+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/how-to-implement-a-dependency-property/vb/CodeSampleVb.vbproj

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+<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/how-to-implement-a-dependency-property/vb/MainWindow.xaml

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+<Window x:Class="CodeSampleVb.MainWindow"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" />

dotnet-desktop-guide/net/wpf/properties/snippets/how-to-implement-a-dependency-property/vb/MainWindow.xaml.vb

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+Namespace CodeSampleVb
+    Partial Public Class MainWindow
+        Inherits Window
+
+        Public Sub New()
+            InitializeComponent()
+        End Sub
+
+        ' <DefineDependencyProperty>
+        Public Class Aquarium
+            Inherits DependencyObject
+
+            Public Shared ReadOnly HasFishProperty As DependencyProperty =
+            DependencyProperty.Register(
+                name:="HasFish",
+                propertyType:=GetType(Boolean),
+                ownerType:=GetType(Aquarium),
+                typeMetadata:=New FrameworkPropertyMetadata(defaultValue:=False))
+
+            Public Property HasFish As Boolean
+                Get
+                    Return GetValue(HasFishProperty)
+                End Get
+                Set(value As Boolean)
+                    SetValue(HasFishProperty, value)
+                End Set
+            End Property
+
+        End Class
+        ' </DefineDependencyProperty>
+    End Class
+End Namespace