diff --git a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Android.cs b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Android.cs
index 51c4f54d2ee1..eb643d760148 100644
--- a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Android.cs
+++ b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Android.cs
@@ -6,12 +6,12 @@ public partial class ActivityIndicatorHandler : ViewHandler<IActivityIndicator,
 	{
 		protected override ProgressBar CreatePlatformView() => new ProgressBar(Context) { Indeterminate = true };
 
-		public static void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateIsRunning(activityIndicator);
 		}
 
-		public static void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateColor(activityIndicator);
 		}
diff --git a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Standard.cs b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Standard.cs
index 8b18b0b8051e..004bfea0541c 100644
--- a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Standard.cs
+++ b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Standard.cs
@@ -6,7 +6,7 @@ public partial class ActivityIndicatorHandler : ViewHandler<IActivityIndicator,
 	{
 		protected override object CreatePlatformView() => throw new NotImplementedException();
 
-		public static void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator) { }
-		public static void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator) { }
+		public static partial void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator) { }
+		public static partial void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator) { }
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Tizen.cs b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Tizen.cs
index 5338c9ec4580..15ee2a3f5ecb 100644
--- a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Tizen.cs
+++ b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Tizen.cs
@@ -6,12 +6,12 @@ public partial class ActivityIndicatorHandler : ViewHandler<IActivityIndicator,
 	{
 		protected override ActivityIndicator CreatePlatformView() => new ActivityIndicator();
 
-		public static void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateIsRunning(activityIndicator);
 		}
 
-		public static void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateColor(activityIndicator);
 		}
diff --git a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Windows.cs b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Windows.cs
index 1abce2d90178..bd52f184d577 100644
--- a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Windows.cs
+++ b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.Windows.cs
@@ -15,23 +15,23 @@ public partial class ActivityIndicatorHandler : ViewHandler<IActivityIndicator,
 			IsIndeterminate = true
 		};
 
-		public static void MapBackground(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapBackground(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.UpdateValue(nameof(IViewHandler.ContainerView));
 			handler.ToPlatform().UpdateBackground(activityIndicator);
 		}
 
-		public static void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateIsRunning(activityIndicator);
 		}
 
-		public static void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateColor(activityIndicator);
 		}
 
-		public static void MapWidth(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapWidth(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			if (handler.PlatformView is ProgressRing platformView)
 			{
@@ -39,7 +39,7 @@ public static void MapWidth(IActivityIndicatorHandler handler, IActivityIndicato
 			}
 		}
 
-		public static void MapHeight(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapHeight(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			if (handler.PlatformView is ProgressRing platformView)
 			{
diff --git a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.cs b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.cs
index 1a468674626d..57033052b059 100644
--- a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.cs
+++ b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.cs
@@ -12,6 +12,10 @@
 
 namespace Microsoft.Maui.Handlers
 {
+	/// <summary>
+	/// Represents the view handler for the abstract <see cref="IActivityIndicator"/> view and its platform-specific implementation.
+	/// </summary>
+	/// <seealso href="https://learn.microsoft.com/dotnet/maui/user-interface/handlers/">Conceptual documentation on handlers</seealso>
 	public partial class ActivityIndicatorHandler : IActivityIndicatorHandler
 	{
 		public static IPropertyMapper<IActivityIndicator, IActivityIndicatorHandler> Mapper = new PropertyMapper<IActivityIndicator, IActivityIndicatorHandler>(ViewHandler.ViewMapper)
@@ -49,5 +53,42 @@ public ActivityIndicatorHandler(IPropertyMapper? mapper, CommandMapper? commandM
 		IActivityIndicator IActivityIndicatorHandler.VirtualView => VirtualView;
 
 		PlatformView IActivityIndicatorHandler.PlatformView => PlatformView;
+
+		/// <summary>
+		/// Maps the abstract <see cref="IActivityIndicator.IsRunning"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="activityIndicator">The associated <see cref="IActivityIndicator"/> instance.</param>
+		public static partial void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IActivityIndicator.Color"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="activityIndicator">The associated <see cref="IActivityIndicator"/> instance.</param>
+		public static partial void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator);
+
+#if WINDOWS
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Width"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="activityIndicator">The associated <see cref="IActivityIndicator"/> instance.</param>
+		public static partial void MapWidth(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Height"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="activityIndicator">The associated <see cref="IActivityIndicator"/> instance.</param>
+		public static partial void MapHeight(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Background"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="activityIndicator">The associated <see cref="IActivityIndicator"/> instance.</param>
+		public static partial void MapBackground(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator);
+#endif
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.iOS.cs b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.iOS.cs
index 66482a307d0c..e3fc6d68a8df 100644
--- a/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.iOS.cs
+++ b/src/Core/src/Handlers/ActivityIndicator/ActivityIndicatorHandler.iOS.cs
@@ -19,12 +19,12 @@ protected override MauiActivityIndicator CreatePlatformView()
 			return platformView;
 		}
 
-		public static void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapIsRunning(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateIsRunning(activityIndicator);
 		}
 
-		public static void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
+		public static partial void MapColor(IActivityIndicatorHandler handler, IActivityIndicator activityIndicator)
 		{
 			handler.PlatformView?.UpdateColor(activityIndicator);
 		}
diff --git a/src/Core/src/Handlers/Application/ApplicationHandler.Android.cs b/src/Core/src/Handlers/Application/ApplicationHandler.Android.cs
index 6691c9dd14cc..5304c02b1b5e 100644
--- a/src/Core/src/Handlers/Application/ApplicationHandler.Android.cs
+++ b/src/Core/src/Handlers/Application/ApplicationHandler.Android.cs
@@ -5,7 +5,7 @@ namespace Microsoft.Maui.Handlers
 {
 	public partial class ApplicationHandler : ElementHandler<IApplication, Application>
 	{
-		public static void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
 		{
 			var currentActivity = ApplicationModel.Platform.CurrentActivity;
 
@@ -17,12 +17,12 @@ public static void MapTerminate(ApplicationHandler handler, IApplication applica
 			}
 		}
 
-		public static void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			handler.PlatformView?.RequestNewWindow(application, args as OpenWindowRequest);
 		}
 
-		public static void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			if (args is IWindow window)
 			{
diff --git a/src/Core/src/Handlers/Application/ApplicationHandler.Standard.cs b/src/Core/src/Handlers/Application/ApplicationHandler.Standard.cs
index 0ef7c8cb0eb7..74c8f097d908 100644
--- a/src/Core/src/Handlers/Application/ApplicationHandler.Standard.cs
+++ b/src/Core/src/Handlers/Application/ApplicationHandler.Standard.cs
@@ -6,8 +6,8 @@ public partial class ApplicationHandler : ElementHandler<IApplication, object>
 	{
 		protected override object CreatePlatformElement() => throw new NotImplementedException();
 
-		public static void MapTerminate(ApplicationHandler handler, IApplication application, object? args) { }
-		public static void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args) { }
-		public static void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args) { }
+		public static partial void MapTerminate(ApplicationHandler handler, IApplication application, object? args) { }
+		public static partial void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args) { }
+		public static partial void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args) { }
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/Application/ApplicationHandler.Tizen.cs b/src/Core/src/Handlers/Application/ApplicationHandler.Tizen.cs
index 9234f3d3fa1f..05e4fae185f6 100644
--- a/src/Core/src/Handlers/Application/ApplicationHandler.Tizen.cs
+++ b/src/Core/src/Handlers/Application/ApplicationHandler.Tizen.cs
@@ -5,17 +5,17 @@ namespace Microsoft.Maui.Handlers
 {
 	public partial class ApplicationHandler : ElementHandler<IApplication, CoreApplication>
 	{
-		public static void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
 		{
 			handler.PlatformView.Exit();
 		}
 
-		public static void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			handler.PlatformView?.RequestNewWindow(application, args as OpenWindowRequest);
 		}
 
-		public static void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			if (args is IWindow window)
 			{
diff --git a/src/Core/src/Handlers/Application/ApplicationHandler.Windows.cs b/src/Core/src/Handlers/Application/ApplicationHandler.Windows.cs
index 26ba4da33d78..c3bba2bab763 100644
--- a/src/Core/src/Handlers/Application/ApplicationHandler.Windows.cs
+++ b/src/Core/src/Handlers/Application/ApplicationHandler.Windows.cs
@@ -5,17 +5,17 @@ namespace Microsoft.Maui.Handlers
 {
 	public partial class ApplicationHandler : ElementHandler<IApplication, UI.Xaml.Application>
 	{
-		public static void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
 		{
 			handler.PlatformView.Exit();
 		}
 
-		public static void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			handler.PlatformView?.CreatePlatformWindow(application, args as OpenWindowRequest);
 		}
 
-		public static void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			if (args is IWindow window)
 			{
diff --git a/src/Core/src/Handlers/Application/ApplicationHandler.cs b/src/Core/src/Handlers/Application/ApplicationHandler.cs
index e3ef151111ba..334d38d33748 100644
--- a/src/Core/src/Handlers/Application/ApplicationHandler.cs
+++ b/src/Core/src/Handlers/Application/ApplicationHandler.cs
@@ -14,6 +14,10 @@
 
 namespace Microsoft.Maui.Handlers
 {
+	/// <summary>
+	/// Represents the view handler for the abstract <see cref="IApplication"/> view and its platform-specific implementation.
+	/// </summary>
+	/// <seealso href="https://learn.microsoft.com/dotnet/maui/user-interface/handlers/">Conceptual documentation on handlers</seealso>
 	public partial class ApplicationHandler
 	{
 		internal const string TerminateCommandKey = "Terminate";
@@ -55,5 +59,29 @@ public ApplicationHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
 		protected override PlatformView CreatePlatformElement() =>
 			MauiContext?.Services.GetService<PlatformView>() ?? throw new InvalidOperationException($"MauiContext did not have a valid application.");
 #endif
+
+		/// <summary>
+		/// Maps the abstract "Terminate" command to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="application">The associated <see cref="IApplication"/> instance.</param>
+		/// <param name="args">The associated command arguments.</param>
+		public static partial void MapTerminate(ApplicationHandler handler, IApplication application, object? args);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IApplication.OpenWindow"/> command to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="application">The associated <see cref="IApplication"/> instance.</param>
+		/// <param name="args">The associated command arguments.</param>
+		public static partial void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IApplication.CloseWindow"/> command to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="application">The associated <see cref="IApplication"/> instance.</param>
+		/// <param name="args">The associated command arguments.</param>
+		public static partial void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args);
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/Application/ApplicationHandler.iOS.cs b/src/Core/src/Handlers/Application/ApplicationHandler.iOS.cs
index 01f93e69045b..9498df89b5ee 100644
--- a/src/Core/src/Handlers/Application/ApplicationHandler.iOS.cs
+++ b/src/Core/src/Handlers/Application/ApplicationHandler.iOS.cs
@@ -10,7 +10,7 @@ namespace Microsoft.Maui.Handlers
 {
 	public partial class ApplicationHandler : ElementHandler<IApplication, IUIApplicationDelegate>
 	{
-		public static void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapTerminate(ApplicationHandler handler, IApplication application, object? args)
 		{
 #if __MACCATALYST__
 			NSApplication.SharedApplication.Terminate();
@@ -21,14 +21,14 @@ public static void MapTerminate(ApplicationHandler handler, IApplication applica
 
 		[SupportedOSPlatform("ios13.0")]
 		[SupportedOSPlatform("tvos13.0")]
-		public static void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapOpenWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			handler.PlatformView?.RequestNewWindow(application, args as OpenWindowRequest);
 		}
 
 		[SupportedOSPlatform("ios13.0")]
 		[SupportedOSPlatform("tvos13.0")]
-		public static void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
+		public static partial void MapCloseWindow(ApplicationHandler handler, IApplication application, object? args)
 		{
 			if (args is IWindow window)
 			{
diff --git a/src/Core/src/Handlers/Border/BorderHandler.Android.cs b/src/Core/src/Handlers/Border/BorderHandler.Android.cs
index dab55056a341..f46cae72dff7 100644
--- a/src/Core/src/Handlers/Border/BorderHandler.Android.cs
+++ b/src/Core/src/Handlers/Border/BorderHandler.Android.cs
@@ -26,13 +26,14 @@ protected override ContentViewGroup CreatePlatformView()
 		public override void SetVirtualView(IView view)
 		{
 			base.SetVirtualView(view);
+
 			_ = VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
 			_ = PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
 
 			PlatformView.CrossPlatformLayout = VirtualView;
 		}
 
-		static void UpdateContent(IBorderHandler handler)
+		static partial void UpdateContent(IBorderHandler handler)
 		{
 			_ = handler.PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
 			_ = handler.MauiContext ?? throw new InvalidOperationException($"{nameof(MauiContext)} should have been set by base class.");
@@ -44,23 +45,18 @@ static void UpdateContent(IBorderHandler handler)
 				handler.PlatformView.AddView(view.ToPlatform(handler.MauiContext));
 		}
 
-		public static void MapHeight(IBorderHandler handler, IBorderView border)
+		public static partial void MapHeight(IBorderHandler handler, IBorderView border)
 		{
 			handler.PlatformView?.UpdateHeight(border);
 			handler.PlatformView?.InvalidateBorderStrokeBounds();
 		}
 
-		public static void MapWidth(IBorderHandler handler, IBorderView border)
+		public static partial void MapWidth(IBorderHandler handler, IBorderView border)
 		{
 			handler.PlatformView?.UpdateWidth(border);
 			handler.PlatformView?.InvalidateBorderStrokeBounds();
 		}
 
-		public static void MapContent(IBorderHandler handler, IBorderView border)
-		{
-			UpdateContent(handler);
-		}
-
 		protected override void DisconnectHandler(ContentViewGroup platformView)
 		{
 			// If we're being disconnected from the xplat element, then we should no longer be managing its children
diff --git a/src/Core/src/Handlers/Border/BorderHandler.Standard.cs b/src/Core/src/Handlers/Border/BorderHandler.Standard.cs
index 5a5e7a981374..cba6b0223867 100644
--- a/src/Core/src/Handlers/Border/BorderHandler.Standard.cs
+++ b/src/Core/src/Handlers/Border/BorderHandler.Standard.cs
@@ -5,9 +5,5 @@ namespace Microsoft.Maui.Handlers
 	public partial class BorderHandler : ViewHandler<IBorderView, object>
 	{
 		protected override object CreatePlatformView() => throw new NotImplementedException();
-
-		public static void MapContent(IBorderHandler handler, IBorderView border)
-		{
-		}
 	}
 }
diff --git a/src/Core/src/Handlers/Border/BorderHandler.Tizen.cs b/src/Core/src/Handlers/Border/BorderHandler.Tizen.cs
index 9a897dfbfe66..12d3eb30ff15 100644
--- a/src/Core/src/Handlers/Border/BorderHandler.Tizen.cs
+++ b/src/Core/src/Handlers/Border/BorderHandler.Tizen.cs
@@ -29,6 +29,7 @@ protected override void SetupContainer()
 		public override void SetVirtualView(IView view)
 		{
 			base.SetVirtualView(view);
+
 			_ = VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
 			_ = PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
 
@@ -36,28 +37,25 @@ public override void SetVirtualView(IView view)
 			PlatformView.CrossPlatformArrange = VirtualView.CrossPlatformArrange;
 		}
 
-		public static void MapContent(IBorderHandler handler, IBorderView border)
-		{
-			if (handler is BorderHandler borderHandler)
-				borderHandler.UpdateContent();
-		}
-
-		void UpdateContent()
+		static partial void UpdateContent(IBorderHandler handler)
 		{
-			_ = PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
-			_ = VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
-			_ = MauiContext ?? throw new InvalidOperationException($"{nameof(MauiContext)} should have been set by base class.");
+			_ = handler.PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
+			_ = handler.VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
+			_ = handler.MauiContext ?? throw new InvalidOperationException($"{nameof(MauiContext)} should have been set by base class.");
 
-			PlatformView.Children.Clear();
-			_contentHandler?.Dispose();
-			_contentHandler = null;
+			handler.PlatformView.Children.Clear();
+			if (handler is BorderHandler borderHandler)
+			{
+				borderHandler._contentHandler?.Dispose();
+				borderHandler._contentHandler = null;
+			}
 
-			if (VirtualView.PresentedContent is IView view)
+			if (handler.VirtualView.PresentedContent is IView view)
 			{
-				PlatformView.Children.Add(view.ToPlatform(MauiContext));
-				if (view.Handler is IPlatformViewHandler thandler)
+				handler.PlatformView.Children.Add(view.ToPlatform(handler.MauiContext));
+				if (view.Handler is IPlatformViewHandler thandler && handler is BorderHandler alsoBorderHandler)
 				{
-					_contentHandler = thandler;
+					alsoBorderHandler._contentHandler = thandler;
 				}
 			}
 		}
diff --git a/src/Core/src/Handlers/Border/BorderHandler.Windows.cs b/src/Core/src/Handlers/Border/BorderHandler.Windows.cs
index a62283780f3d..cb415e9ae929 100644
--- a/src/Core/src/Handlers/Border/BorderHandler.Windows.cs
+++ b/src/Core/src/Handlers/Border/BorderHandler.Windows.cs
@@ -14,7 +14,7 @@ public override void SetVirtualView(IView view)
 			PlatformView.CrossPlatformLayout = VirtualView;
 		}
 
-		static void UpdateContent(IBorderHandler handler)
+		static partial void UpdateContent(IBorderHandler handler)
 		{
 			_ = handler.PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
 			_ = handler.VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
@@ -41,10 +41,5 @@ protected override ContentPanel CreatePlatformView()
 
 			return view;
 		}
-
-		public static void MapContent(IBorderHandler handler, IBorderView border)
-		{
-			UpdateContent(handler);
-		}
 	}
 }
diff --git a/src/Core/src/Handlers/Border/BorderHandler.cs b/src/Core/src/Handlers/Border/BorderHandler.cs
index 3a9f03fc89e0..a60148113827 100644
--- a/src/Core/src/Handlers/Border/BorderHandler.cs
+++ b/src/Core/src/Handlers/Border/BorderHandler.cs
@@ -13,24 +13,28 @@
 
 namespace Microsoft.Maui.Handlers
 {
+	/// <summary>
+	/// Represents the view handler for the abstract <see cref="IBorderView"/> view and its platform-specific implementation.
+	/// </summary>
+	/// <seealso href="https://learn.microsoft.com/dotnet/maui/user-interface/handlers/">Conceptual documentation on handlers</seealso>
 	public partial class BorderHandler : IBorderHandler
 	{
 		public static IPropertyMapper<IBorderView, IBorderHandler> Mapper = new PropertyMapper<IBorderView, IBorderHandler>(ViewMapper)
 		{
 #if __ANDROID__
-			[nameof(IContentView.Height)] = MapHeight,
-			[nameof(IContentView.Width)] = MapWidth,
+			[nameof(IBorderView.Height)] = MapHeight,
+			[nameof(IBorderView.Width)] = MapWidth,
 #endif
-			[nameof(IContentView.Background)] = MapBackground,
-			[nameof(IContentView.Content)] = MapContent,
-			[nameof(IBorderStroke.Shape)] = MapStrokeShape,
-			[nameof(IBorderStroke.Stroke)] = MapStroke,
-			[nameof(IBorderStroke.StrokeThickness)] = MapStrokeThickness,
-			[nameof(IBorderStroke.StrokeLineCap)] = MapStrokeLineCap,
-			[nameof(IBorderStroke.StrokeLineJoin)] = MapStrokeLineJoin,
-			[nameof(IBorderStroke.StrokeDashPattern)] = MapStrokeDashPattern,
-			[nameof(IBorderStroke.StrokeDashOffset)] = MapStrokeDashOffset,
-			[nameof(IBorderStroke.StrokeMiterLimit)] = MapStrokeMiterLimit
+			[nameof(IBorderView.Background)] = MapBackground,
+			[nameof(IBorderView.Content)] = MapContent,
+			[nameof(IBorderView.Shape)] = MapStrokeShape,
+			[nameof(IBorderView.Stroke)] = MapStroke,
+			[nameof(IBorderView.StrokeThickness)] = MapStrokeThickness,
+			[nameof(IBorderView.StrokeLineCap)] = MapStrokeLineCap,
+			[nameof(IBorderView.StrokeLineJoin)] = MapStrokeLineJoin,
+			[nameof(IBorderView.StrokeDashPattern)] = MapStrokeDashPattern,
+			[nameof(IBorderView.StrokeDashOffset)] = MapStrokeDashOffset,
+			[nameof(IBorderView.StrokeMiterLimit)] = MapStrokeMiterLimit
 		};
 
 		public static CommandMapper<IBorderView, BorderHandler> CommandMapper = new(ViewCommandMapper)
@@ -56,52 +60,125 @@ public BorderHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
 
 		PlatformView IBorderHandler.PlatformView => PlatformView;
 
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Background"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapBackground(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateBackground(border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IBorderStroke.Shape"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeShape(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeShape(border);
 			MapBackground(handler, border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.Stroke"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStroke(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStroke(border);
 			MapBackground(handler, border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.StrokeThickness"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeThickness(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeThickness(border);
 			MapBackground(handler, border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.StrokeLineCap"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeLineCap(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeLineCap(border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.StrokeLineJoin"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeLineJoin(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeLineJoin(border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.StrokeDashPattern"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeDashPattern(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeDashPattern(border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.StrokeDashOffset"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeDashOffset(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeDashOffset(border);
 		}
 
+		/// <summary>
+		/// Maps the abstract <see cref="IStroke.StrokeMiterLimit"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
 		public static void MapStrokeMiterLimit(IBorderHandler handler, IBorderView border)
 		{
 			((PlatformView?)handler.PlatformView)?.UpdateStrokeMiterLimit(border);
 		}
+
+		/// <summary>
+		/// Maps the abstract <see cref="IContentView.Content"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
+		public static void MapContent(IBorderHandler handler, IBorderView border)
+		{
+			UpdateContent(handler);
+		}
+
+		static partial void UpdateContent(IBorderHandler handler);
+
+#if __ANDROID__
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Width"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
+		public static partial void MapWidth(IBorderHandler handler, IBorderView border);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Height"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="border">The associated <see cref="IBorderView"/> instance.</param>
+		public static partial void MapHeight(IBorderHandler handler, IBorderView border);
+#endif
 	}
 }
diff --git a/src/Core/src/Handlers/Border/BorderHandler.iOS.cs b/src/Core/src/Handlers/Border/BorderHandler.iOS.cs
index 3590bed57ae2..d0b041acabe8 100644
--- a/src/Core/src/Handlers/Border/BorderHandler.iOS.cs
+++ b/src/Core/src/Handlers/Border/BorderHandler.iOS.cs
@@ -31,6 +31,7 @@ protected override void DisconnectHandler(ContentView platformView)
 		public override void SetVirtualView(IView view)
 		{
 			base.SetVirtualView(view);
+
 			_ = PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
 			_ = VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
 
@@ -38,7 +39,7 @@ public override void SetVirtualView(IView view)
 			PlatformView.CrossPlatformLayout = VirtualView;
 		}
 
-		static void UpdateContent(IBorderHandler handler)
+		static partial void UpdateContent(IBorderHandler handler)
 		{
 			_ = handler.PlatformView ?? throw new InvalidOperationException($"{nameof(PlatformView)} should have been set by base class.");
 			_ = handler.VirtualView ?? throw new InvalidOperationException($"{nameof(VirtualView)} should have been set by base class.");
@@ -54,10 +55,5 @@ static void UpdateContent(IBorderHandler handler)
 				handler.PlatformView.ChildMaskLayer = null;
 			}
 		}
-
-		public static void MapContent(IBorderHandler handler, IBorderView border)
-		{
-			UpdateContent(handler);
-		}
 	}
 }
diff --git a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Android.cs b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Android.cs
index 019401ec1a81..91dd6009921a 100644
--- a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Android.cs
+++ b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Android.cs
@@ -29,17 +29,17 @@ protected override void DisconnectHandler(AppCompatCheckBox platformView)
 		}
 
 		// This is an Android-specific mapping
-		public static void MapBackground(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapBackground(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateBackground(check);
 		}
 
-		public static void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateIsChecked(check);
 		}
 
-		public static void MapForeground(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapForeground(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateForeground(check);
 		}
diff --git a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Standard.cs b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Standard.cs
index 223582cd25d8..b26000e9c8a4 100644
--- a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Standard.cs
+++ b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Standard.cs
@@ -6,8 +6,8 @@ public partial class CheckBoxHandler : ViewHandler<ICheckBox, object>
 	{
 		protected override object CreatePlatformView() => throw new NotImplementedException();
 
-		public static void MapIsChecked(ICheckBoxHandler handler, ICheckBox check) { }
+		public static partial void MapIsChecked(ICheckBoxHandler handler, ICheckBox check) { }
 
-		public static void MapForeground(ICheckBoxHandler handler, ICheckBox check) { }
+		public static partial void MapForeground(ICheckBoxHandler handler, ICheckBox check) { }
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Tizen.cs b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Tizen.cs
index b93165d63868..82cbca56daf6 100644
--- a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Tizen.cs
+++ b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Tizen.cs
@@ -25,12 +25,12 @@ protected override void DisconnectHandler(CheckBox platformView)
 			platformView.ValueChanged -= OnStateChanged;
 		}
 
-		public static void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateIsChecked(check);
 		}
 
-		public static void MapForeground(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapForeground(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateForeground(check);
 		}
diff --git a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Windows.cs b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Windows.cs
index 9a5dd054557e..538cc2c31451 100644
--- a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Windows.cs
+++ b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.Windows.cs
@@ -61,12 +61,12 @@ protected override void DisconnectHandler(CheckBox platformView)
 			platformView.Unchecked -= OnChecked;
 		}
 
-		public static void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateIsChecked(check);
 		}
 
-		public static void MapForeground(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapForeground(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateForeground(check);
 		}
diff --git a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.cs b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.cs
index 3e6c54a3c609..9e3b2a7d1221 100644
--- a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.cs
+++ b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.cs
@@ -13,6 +13,10 @@
 
 namespace Microsoft.Maui.Handlers
 {
+	/// <summary>
+	/// Represents the view handler for the abstract <see cref="ICheckBox"/> view and its platform-specific implementation.
+	/// </summary>
+	/// <seealso href="https://learn.microsoft.com/dotnet/maui/user-interface/handlers/">Conceptual documentation on handlers</seealso>
 	public partial class CheckBoxHandler : ICheckBoxHandler
 	{
 		public static IPropertyMapper<ICheckBox, ICheckBoxHandler> Mapper = new PropertyMapper<ICheckBox, ICheckBoxHandler>(ViewHandler.ViewMapper)
@@ -46,5 +50,28 @@ public CheckBoxHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
 		ICheckBox ICheckBoxHandler.VirtualView => VirtualView;
 
 		PlatformView ICheckBoxHandler.PlatformView => PlatformView;
+
+#if MONOANDROID
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Background"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="check">The associated <see cref="ICheckBox"/> instance.</param>
+		public static partial void MapBackground(ICheckBoxHandler handler, ICheckBox check);
+#endif
+
+		/// <summary>
+		/// Maps the abstract <see cref="ICheckBox.IsChecked"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="check">The associated <see cref="ICheckBox"/> instance.</param>
+		public static partial void MapIsChecked(ICheckBoxHandler handler, ICheckBox check);
+
+		/// <summary>
+		/// Maps the abstract <see cref="ICheckBox.Foreground"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="check">The associated <see cref="ICheckBox"/> instance.</param>
+		public static partial void MapForeground(ICheckBoxHandler handler, ICheckBox check);
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.iOS.cs b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.iOS.cs
index 9377866d5fdc..d283c14f22d3 100644
--- a/src/Core/src/Handlers/CheckBox/CheckBoxHandler.iOS.cs
+++ b/src/Core/src/Handlers/CheckBox/CheckBoxHandler.iOS.cs
@@ -29,12 +29,12 @@ protected override void DisconnectHandler(MauiCheckBox platformView)
 			platformView.CheckedChanged -= OnCheckedChanged;
 		}
 
-		public static void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapIsChecked(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateIsChecked(check);
 		}
 
-		public static void MapForeground(ICheckBoxHandler handler, ICheckBox check)
+		public static partial void MapForeground(ICheckBoxHandler handler, ICheckBox check)
 		{
 			handler.PlatformView?.UpdateForeground(check);
 		}
diff --git a/src/Core/src/Handlers/ContentView/ContentViewHandler.Android.cs b/src/Core/src/Handlers/ContentView/ContentViewHandler.Android.cs
index 8240a5c00469..88cacde6a1b1 100644
--- a/src/Core/src/Handlers/ContentView/ContentViewHandler.Android.cs
+++ b/src/Core/src/Handlers/ContentView/ContentViewHandler.Android.cs
@@ -42,7 +42,7 @@ static void UpdateContent(IContentViewHandler handler)
 				handler.PlatformView.AddView(view.ToPlatform(handler.MauiContext));
 		}
 
-		public static void MapContent(IContentViewHandler handler, IContentView page)
+		public static partial void MapContent(IContentViewHandler handler, IContentView page)
 		{
 			UpdateContent(handler);
 		}
diff --git a/src/Core/src/Handlers/ContentView/ContentViewHandler.Standard.cs b/src/Core/src/Handlers/ContentView/ContentViewHandler.Standard.cs
index 786b7faeab2c..752d42069616 100644
--- a/src/Core/src/Handlers/ContentView/ContentViewHandler.Standard.cs
+++ b/src/Core/src/Handlers/ContentView/ContentViewHandler.Standard.cs
@@ -6,7 +6,7 @@ public partial class ContentViewHandler : ViewHandler<IContentView, object>
 	{
 		protected override object CreatePlatformView() => throw new NotImplementedException();
 
-		public static void MapContent(IContentViewHandler handler, IContentView page)
+		public static partial void MapContent(IContentViewHandler handler, IContentView page)
 		{
 		}
 	}
diff --git a/src/Core/src/Handlers/ContentView/ContentViewHandler.Tizen.cs b/src/Core/src/Handlers/ContentView/ContentViewHandler.Tizen.cs
index a572439b46f7..1c9f4df528ea 100644
--- a/src/Core/src/Handlers/ContentView/ContentViewHandler.Tizen.cs
+++ b/src/Core/src/Handlers/ContentView/ContentViewHandler.Tizen.cs
@@ -29,13 +29,13 @@ public override void SetVirtualView(IView view)
 			PlatformView.CrossPlatformArrange = VirtualView.CrossPlatformArrange;
 		}
 
-		public static void MapBackground(IContentViewHandler handler, IContentView view)
+		public static partial void MapBackground(IContentViewHandler handler, IContentView view)
 		{
 			handler.UpdateValue(nameof(handler.ContainerView));
 			handler.ToPlatform()?.UpdateBackground(view);
 		}
 
-		public static void MapContent(IContentViewHandler handler, IContentView page)
+		public static partial void MapContent(IContentViewHandler handler, IContentView page)
 		{
 			if (handler is ContentViewHandler contentViewHandler)
 			{
diff --git a/src/Core/src/Handlers/ContentView/ContentViewHandler.Windows.cs b/src/Core/src/Handlers/ContentView/ContentViewHandler.Windows.cs
index 46e9fbc71740..291ce76812ef 100644
--- a/src/Core/src/Handlers/ContentView/ContentViewHandler.Windows.cs
+++ b/src/Core/src/Handlers/ContentView/ContentViewHandler.Windows.cs
@@ -41,7 +41,7 @@ protected override ContentPanel CreatePlatformView()
 			return view;
 		}
 
-		public static void MapContent(IContentViewHandler handler, IContentView page)
+		public static partial void MapContent(IContentViewHandler handler, IContentView page)
 		{
 			UpdateContent(handler);
 		}
diff --git a/src/Core/src/Handlers/ContentView/ContentViewHandler.cs b/src/Core/src/Handlers/ContentView/ContentViewHandler.cs
index 651a566d246c..3b8482f9c73a 100644
--- a/src/Core/src/Handlers/ContentView/ContentViewHandler.cs
+++ b/src/Core/src/Handlers/ContentView/ContentViewHandler.cs
@@ -13,6 +13,10 @@
 
 namespace Microsoft.Maui.Handlers
 {
+	/// <summary>
+	/// Represents the view handler for the abstract <see cref="IContentView"/> view and its platform-specific implementation.
+	/// </summary>
+	/// <seealso href="https://learn.microsoft.com/dotnet/maui/user-interface/handlers/">Conceptual documentation on handlers</seealso>
 	public partial class ContentViewHandler : IContentViewHandler
 	{
 		public static IPropertyMapper<IContentView, IContentViewHandler> Mapper =
@@ -45,5 +49,21 @@ public ContentViewHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
 		IContentView IContentViewHandler.VirtualView => VirtualView;
 
 		PlatformView IContentViewHandler.PlatformView => PlatformView;
+
+#if TIZEN
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Background"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="view">The associated <see cref="IContentView"/> instance.</param>
+		public static partial void MapBackground(IContentViewHandler handler, IContentView view);
+#endif
+
+		/// <summary>
+		/// Maps the abstract <see cref="IContentView.Content"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="page">The associated <see cref="IContentView"/> instance.</param>
+		public static partial void MapContent(IContentViewHandler handler, IContentView page);
 	}
 }
diff --git a/src/Core/src/Handlers/ContentView/ContentViewHandler.iOS.cs b/src/Core/src/Handlers/ContentView/ContentViewHandler.iOS.cs
index 0a4e4010869f..1f2ea84c600f 100644
--- a/src/Core/src/Handlers/ContentView/ContentViewHandler.iOS.cs
+++ b/src/Core/src/Handlers/ContentView/ContentViewHandler.iOS.cs
@@ -47,7 +47,7 @@ static void UpdateContent(IContentViewHandler handler)
 			}
 		}
 
-		public static void MapContent(IContentViewHandler handler, IContentView page)
+		public static partial void MapContent(IContentViewHandler handler, IContentView page)
 		{
 			UpdateContent(handler);
 		}
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Android.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Android.cs
index 9baf18fc711a..2979a6ee14e4 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Android.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Android.cs
@@ -77,47 +77,46 @@ protected virtual DatePickerDialog CreateDatePickerDialog(int year, int month, i
 			return dialog;
 		}
 
-		// This is a Android-specific mapping
-		public static void MapBackground(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapBackground(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateBackground(datePicker);
 		}
 
-		public static void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateFormat(datePicker);
 		}
 
-		public static void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateDate(datePicker);
 		}
 
-		public static void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			if (handler is DatePickerHandler platformHandler)
 				handler.PlatformView?.UpdateMinimumDate(datePicker, platformHandler._dialog);
 		}
 
-		public static void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			if (handler is DatePickerHandler platformHandler)
 				handler.PlatformView?.UpdateMaximumDate(datePicker, platformHandler._dialog);
 		}
 
-		public static void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateCharacterSpacing(datePicker);
 		}
 
-		public static void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			var fontManager = handler.GetRequiredService<IFontManager>();
 
 			handler.PlatformView?.UpdateFont(datePicker, fontManager);
 		}
 
-		public static void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			if (handler is DatePickerHandler platformHandler)
 				handler.PlatformView?.UpdateTextColor(datePicker);
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.MacCatalyst.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.MacCatalyst.cs
index 9cb70cbc979a..2761e9b46b71 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.MacCatalyst.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.MacCatalyst.cs
@@ -38,41 +38,41 @@ protected override void DisconnectHandler(UIDatePicker platformView)
 			base.DisconnectHandler(platformView);
 		}
 
-		public static void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateFormat(datePicker);
 		}
 
-		public static void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateDate(datePicker);
 		}
 
-		public static void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateMinimumDate(datePicker);
 		}
 
-		public static void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateMaximumDate(datePicker);
 		}
 
-		public static void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 		}
 
-		public static void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 
 		}
 
-		public static void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 
 		}
 
-		public static void MapFlowDirection(DatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFlowDirection(DatePickerHandler handler, IDatePicker datePicker)
 		{
 
 		}
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Standard.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Standard.cs
index 05b8c8586c69..52635d6682ab 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Standard.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Standard.cs
@@ -6,12 +6,12 @@ public partial class DatePickerHandler : ViewHandler<IDatePicker, object>
 	{
 		protected override object CreatePlatformView() => throw new NotImplementedException();
 
-		public static void MapFormat(IDatePickerHandler handler, IDatePicker datePicker) { }
-		public static void MapDate(IDatePickerHandler handler, IDatePicker datePicker) { }
-		public static void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
-		public static void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
-		public static void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker) { }
-		public static void MapFont(IDatePickerHandler handler, IDatePicker datePicker) { }
-		public static void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker) { }
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Tizen.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Tizen.cs
index 984211cb0c80..4d08aab1e3d6 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Tizen.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Tizen.cs
@@ -25,34 +25,34 @@ protected override void DisconnectHandler(NEntry platformView)
 			base.DisconnectHandler(platformView);
 		}
 
-		public static void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateFormat(datePicker);
 		}
 
-		public static void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateDate(datePicker);
 		}
 
-		public static void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			var fontManager = handler.GetRequiredService<IFontManager>();
 			handler.PlatformView.UpdateFont(datePicker, fontManager);
 		}
 
-		public static void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateTextColor(datePicker);
 		}
 
 		[MissingMapper]
-		public static void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
 
 		[MissingMapper]
-		public static void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker) { }
 
-		public static void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateCharacterSpacing(datePicker);
 		}
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Windows.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Windows.cs
index 51ed98ef1f83..807af51488de 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.Windows.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.Windows.cs
@@ -18,39 +18,39 @@ protected override void DisconnectHandler(CalendarDatePicker platformView)
 			platformView.DateChanged -= DateChanged;
 		}
 
-		public static void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateDate(datePicker);
 		}
 
-		public static void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateDate(datePicker);
 		}
 
-		public static void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateMinimumDate(datePicker);
 		}
 
-		public static void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateMaximumDate(datePicker);
 		}
 
-		public static void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateCharacterSpacing(datePicker);
 		}
 
-		public static void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			var fontManager = handler.GetRequiredService<IFontManager>();
 
 			handler.PlatformView.UpdateFont(datePicker, fontManager);
 		}
 
-		public static void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView.UpdateTextColor(datePicker);
 		}
@@ -81,8 +81,7 @@ private void DateChanged(CalendarDatePicker sender, CalendarDatePickerDateChange
 			VirtualView.Date = args.NewDate.Value.Date;
 		}
 
-		// TODO NET8 add to public API
-		internal static void MapBackground(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapBackground(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateBackground(datePicker);
 		}
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.cs
index 3d71260cbb91..ba750f45223d 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.cs
@@ -14,6 +14,10 @@
 
 namespace Microsoft.Maui.Handlers
 {
+	/// <summary>
+	/// Represents the view handler for the abstract <see cref="IDatePicker"/> view and its platform-specific implementation.
+	/// </summary>
+	/// <seealso href="https://learn.microsoft.com/dotnet/maui/user-interface/handlers/">Conceptual documentation on handlers</seealso>
 	public partial class DatePickerHandler : IDatePickerHandler
 	{
 		public static IPropertyMapper<IDatePicker, IDatePickerHandler> Mapper = new PropertyMapper<IDatePicker, IDatePickerHandler>(ViewHandler.ViewMapper)
@@ -53,5 +57,72 @@ public DatePickerHandler(IPropertyMapper? mapper, CommandMapper? commandMapper)
 		IDatePicker IDatePickerHandler.VirtualView => VirtualView;
 
 		PlatformView IDatePickerHandler.PlatformView => PlatformView;
+
+#if ANDROID || WINDOWS
+		/// <summary>
+		/// Maps the abstract <see cref="IView.Background"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapBackground(IDatePickerHandler handler, IDatePicker datePicker);
+#endif
+
+#if IOS || MACCATALYST
+		/// <summary>
+		/// Maps the abstract <see cref="IView.FlowDirection"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapFlowDirection(DatePickerHandler handler, IDatePicker datePicker);
+#endif
+
+		/// <summary>
+		/// Maps the abstract <see cref="IDatePicker.Format"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IDatePicker.Date"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IDatePicker.MinimumDate"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker);
+
+		/// <summary>
+		/// Maps the abstract <see cref="IDatePicker.MaximumDate"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker);
+
+		/// <summary>
+		/// Maps the abstract <see cref="ITextStyle.CharacterSpacing"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker);
+
+		/// <summary>
+		/// Maps the abstract <see cref="ITextStyle.Font"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker);
+
+		/// <summary>
+		/// Maps the abstract <see cref="ITextStyle.TextColor"/> property to the platform-specific implementations.
+		/// </summary>
+		/// <param name="handler">The associated handler.</param>
+		/// <param name="datePicker">The associated <see cref="IDatePicker"/> instance.</param>
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker);
 	}
 }
\ No newline at end of file
diff --git a/src/Core/src/Handlers/DatePicker/DatePickerHandler.iOS.cs b/src/Core/src/Handlers/DatePicker/DatePickerHandler.iOS.cs
index 0714508351d0..8342976a839d 100644
--- a/src/Core/src/Handlers/DatePicker/DatePickerHandler.iOS.cs
+++ b/src/Core/src/Handlers/DatePicker/DatePickerHandler.iOS.cs
@@ -39,48 +39,48 @@ protected override void DisconnectHandler(MauiDatePicker platformView)
 			base.DisconnectHandler(platformView);
 		}
 
-		public static void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFormat(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			var picker = (handler as DatePickerHandler)?.DatePickerDialog;
 			handler.PlatformView?.UpdateFormat(datePicker, picker);
 		}
 
-		public static void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			var picker = (handler as DatePickerHandler)?.DatePickerDialog;
 			handler.PlatformView?.UpdateDate(datePicker, picker);
 		}
 
-		public static void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMinimumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			if (handler is DatePickerHandler platformHandler)
 				handler.PlatformView?.UpdateMinimumDate(datePicker, platformHandler.DatePickerDialog);
 		}
 
-		public static void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapMaximumDate(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			if (handler is DatePickerHandler platformHandler)
 				handler.PlatformView?.UpdateMaximumDate(datePicker, platformHandler.DatePickerDialog);
 		}
 
-		public static void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapCharacterSpacing(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateCharacterSpacing(datePicker);
 		}
 
-		public static void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFont(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			var fontManager = handler.GetRequiredService<IFontManager>();
 
 			handler.PlatformView?.UpdateFont(datePicker, fontManager);
 		}
 
-		public static void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapTextColor(IDatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateTextColor(datePicker);
 		}
 
-		public static void MapFlowDirection(DatePickerHandler handler, IDatePicker datePicker)
+		public static partial void MapFlowDirection(DatePickerHandler handler, IDatePicker datePicker)
 		{
 			handler.PlatformView?.UpdateFlowDirection(datePicker);
 			handler.PlatformView?.UpdateTextAlignment(datePicker);
diff --git a/src/Core/src/PublicAPI/net-windows/PublicAPI.Unshipped.txt b/src/Core/src/PublicAPI/net-windows/PublicAPI.Unshipped.txt
index d2046ff89f73..338fe09c78e8 100644
--- a/src/Core/src/PublicAPI/net-windows/PublicAPI.Unshipped.txt
+++ b/src/Core/src/PublicAPI/net-windows/PublicAPI.Unshipped.txt
@@ -87,3 +87,4 @@ static Microsoft.Maui.Handlers.MenuFlyoutSubItemHandler.MapAccelerator(Microsoft
 *REMOVED*Microsoft.Maui.ILayout.CrossPlatformMeasure(double widthConstraint, double heightConstraint) -> Microsoft.Maui.Graphics.Size
 *REMOVED*override Microsoft.Maui.Platform.ContentPanel.MeasureOverride(Windows.Foundation.Size availableSize) -> Windows.Foundation.Size
 *REMOVED*override Microsoft.Maui.Platform.LayoutPanel.MeasureOverride(Windows.Foundation.Size availableSize) -> Windows.Foundation.Size
+static Microsoft.Maui.Handlers.DatePickerHandler.MapBackground(Microsoft.Maui.Handlers.IDatePickerHandler! handler, Microsoft.Maui.IDatePicker! datePicker) -> void