Merge pull request #2369 from southworkscom/DeprecateNavigationView

Deprecate NavigationView extension

Author: nmetulev

Microsoft.Toolkit.Uwp.SampleApp/SamplePages/samples.json

@@ -918,8 +918,9 @@
         "XamlCodeFile": "NavigationViewStylesXaml.bind",
         "DocumentationUrl": "https://raw.githubusercontent.com/Microsoft/WindowsCommunityToolkit/master/docs/extensions/NavigationView.md",
         "Icon": "/SamplePages/NavigationViewStyles/NavigationViewStyles.png",
-        "About": "Style extensions for the NavigationView to appear like the one used by Visual Studio Code.",
-        "BadgeUpdateVersionRequired": "Fall Creators Update required",
+        "About": "The NavigationView extension will be removed in a future major release.",
+        "BadgeUpdateVersionRequired": "DEPRECATED",
+        "DeprecatedWarning": "The NavigationView extension will be removed in a future major release.",
         "ApiCheck": "Windows.UI.Xaml.Controls.NavigationView",
         "CodeUrl": "https://github.com/Microsoft/UWPCommunitToolkit/tree/master/Microsoft.Toolkit.Uwp.UI/Extensions/NavigationView"
       },

Microsoft.Toolkit.Uwp.UI/Extensions/NavigationView/NavigationViewExtensions.cs

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Data;
@@ -12,6 +13,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Extensions
     /// Set of extensions for the <see cref="NavigationView"/> control.
     /// </summary>
     [Bindable]
+    [Obsolete("The Navigation View extension will be removed in a future major release.")]
     public static class NavigationViewExtensions
     {
         // Name of Content area in NavigationView Template.

docs/extensions/NavigationView.md

@@ -6,6 +6,9 @@ keywords: windows 10, uwp, windows community toolkit, uwp community toolkit, uwp
 ---
 
 # NavigationView Styles
+
+> [!NOTE] The NavigationView extension will be removed in a future major release.
+
 <!-- Describe your control -->
 The [NavigationView Styles](https://docs.microsoft.com/en-us/windows/communitytoolkit/extensions/navigationview) are a set of styles and extensions to reskin a `NavigationView` to look and behave like the `Activity Bar` and `Side Bar` in *Visual Studio Code*.