fix: Fixed samples app compilation due to generators

src/SamplesApp/UITests.Shared/Microsoft_UI_Xaml_Controls/TreeView/TreeViewItemSource.cs

@@ -5,9 +5,9 @@
 using System.Collections.ObjectModel;
 using System.ComponentModel;
 
-namespace UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests
+namespace MUX.UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests
 {
-	public class TreeViewItemSource : INotifyPropertyChanged
+	public partial class TreeViewItemSource : INotifyPropertyChanged
 	{
 		public event PropertyChangedEventHandler PropertyChanged;
 		public String Content { get; set; }

src/SamplesApp/UITests.Shared/Microsoft_UI_Xaml_Controls/TreeView/TreeViewNode2.cs

@@ -8,7 +8,7 @@
 namespace UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests
 {
 	// An empty class to test TreeViewNode inheritance
-	class TreeViewNode2 : TreeViewNode
+	public partial class TreeViewNode2 : TreeViewNode
 	{
 
 	}

src/SamplesApp/UITests.Shared/Microsoft_UI_Xaml_Controls/TreeView/TreeViewPage.xaml

@@ -5,7 +5,7 @@
     x:Name="TwoPaneViewTestPage"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:local="using:UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests"
+    xmlns:local="using:MUX.UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests"
 	xmlns:xamarin="http://uno.ui/xamarin"
     xmlns:muxcontrols="using:Microsoft.UI.Xaml.Controls"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

src/SamplesApp/UITests.Shared/Microsoft_UI_Xaml_Controls/TreeView/TreeViewPage.xaml.cs

@@ -26,6 +26,7 @@
 using System.Threading.Tasks;
 using Uno.UI.Samples.Controls;
 using MUXControlsTestApp.Utilities;
+using MUX.UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests;
 
 namespace UITests.Shared.Microsoft_UI_Xaml_Controls.TreeViewTests
 {
@@ -95,7 +96,7 @@ private async Task<ObservableCollection<TreeViewItemSource>> PrepareItemsSourceA
 			});
 		}
 
-		protected override void OnNavigatedFrom(NavigationEventArgs e)
+		protected internal override void OnNavigatedFrom(NavigationEventArgs e)
 		{
 			// Unset all override flags to avoid impacting subsequent tests
 			//TODO
@@ -517,7 +518,7 @@ private void SetupCustomDragUIOverride_Click(object sender, RoutedEventArgs e)
 			AutomationProperties.SetName(lastItem, "CustomDragUIOverrideDropTarget");
 		}
 
-		private void Item_DragEnter(object sender, DragEventArgs e)
+		private void Item_DragEnter(object sender, Windows.UI.Xaml.DragEventArgs e)
 		{
 			e.DragUIOverride.Caption = "test caption";
 			e.DragUIOverride.IsCaptionVisible = true;
@@ -526,7 +527,7 @@ private void Item_DragEnter(object sender, DragEventArgs e)
 			e.Handled = true;
 		}
 
-		private async void TreeView_Drop(object sender, DragEventArgs e)
+		private async void TreeView_Drop(object sender, Windows.UI.Xaml.DragEventArgs e)
 		{
 			try
 			{
@@ -546,7 +547,7 @@ private void Draggable_DragStarting(UIElement sender, DragStartingEventArgs args
 			Results.Text = "Drag started";
 		}
 
-		private void TreeView_DragOver(object sender, DragEventArgs e)
+		private void TreeView_DragOver(object sender, Windows.UI.Xaml.DragEventArgs e)
 		{
 			e.AcceptedOperation = DataPackageOperation.Copy;
 		}
@@ -557,12 +558,12 @@ private void SizeTreeViewsForDrags_Click(object sender, RoutedEventArgs e)
 			TestTreeView2.Height = 200;
 		}
 
-		private void DropTarget_DragOver(object sender, DragEventArgs e)
+		private void DropTarget_DragOver(object sender, Windows.UI.Xaml.DragEventArgs e)
 		{
 			e.AcceptedOperation = DataPackageOperation.Copy;
 		}
 
-		private async void DropTarget_Drop(object sender, DragEventArgs e)
+		private async void DropTarget_Drop(object sender, Windows.UI.Xaml.DragEventArgs e)
 		{
 			try
 			{
@@ -701,13 +702,13 @@ private void SetupDragDropHandlersForApiTest_Click(object sender, RoutedEventArg
 			ContentModeTestTreeView2.Drop += DropForApiTest;
 		}
 
-		private void DragEnterForApiTest(object sender, DragEventArgs args)
+		private void DragEnterForApiTest(object sender, Windows.UI.Xaml.DragEventArgs args)
 		{
 			args.AcceptedOperation = DataPackageOperation.Copy;
 			Results.Text = "DragEnter";
 		}
 
-		private void DragOverForApiTest(object sender, DragEventArgs args)
+		private void DragOverForApiTest(object sender, Windows.UI.Xaml.DragEventArgs args)
 		{
 			args.AcceptedOperation = DataPackageOperation.Copy;
 			if (!Results.Text.Contains("DragOver"))
@@ -716,12 +717,12 @@ private void DragOverForApiTest(object sender, DragEventArgs args)
 			}
 		}
 
-		private void DragLeaveForApiTest(object sender, DragEventArgs args)
+		private void DragLeaveForApiTest(object sender, Windows.UI.Xaml.DragEventArgs args)
 		{
 			Results.Text += "->DragLeave";
 		}
 
-		private void DropForApiTest(object sender, DragEventArgs args)
+		private void DropForApiTest(object sender, Windows.UI.Xaml.DragEventArgs args)
 		{
 			Results.Text += "->Drop";
 		}