From 0988d1cbad948a80e5b460dc5877021b3b8f424c Mon Sep 17 00:00:00 2001
From: Jerome Laban <jerome.laban@nventive.com>
Date: Tue, 5 Jan 2021 10:00:13 -0500
Subject: [PATCH 1/2] refactor: Use TargetFrameworks for UnoPlatform
 compatibility

---
 .../Microsoft.Toolkit.Uwp.Connectivity.csproj                   | 2 +-
 .../Microsoft.Toolkit.Uwp.DeveloperTools.csproj                 | 2 +-
 .../Microsoft.Toolkit.Uwp.UI.Animations.csproj                  | 2 +-
 .../Microsoft.Toolkit.Uwp.UI.Controls.DataGrid.csproj           | 2 +-
 .../Microsoft.Toolkit.Uwp.UI.Controls.Layout.csproj             | 2 +-
 .../Microsoft.Toolkit.Uwp.UI.Controls.Markdown.csproj           | 2 +-
 .../Microsoft.Toolkit.Uwp.UI.Controls.csproj                    | 2 +-
 Microsoft.Toolkit.Uwp.UI/Microsoft.Toolkit.Uwp.UI.csproj        | 2 +-
 Microsoft.Toolkit.Uwp/Microsoft.Toolkit.Uwp.csproj              | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/Microsoft.Toolkit.Uwp.Connectivity/Microsoft.Toolkit.Uwp.Connectivity.csproj b/Microsoft.Toolkit.Uwp.Connectivity/Microsoft.Toolkit.Uwp.Connectivity.csproj
index f1b211c251d..0ba7b96164f 100644
--- a/Microsoft.Toolkit.Uwp.Connectivity/Microsoft.Toolkit.Uwp.Connectivity.csproj
+++ b/Microsoft.Toolkit.Uwp.Connectivity/Microsoft.Toolkit.Uwp.Connectivity.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit Devices</Title>
     <Description>This library enables easier consumption of connectivity Devices/Peripherals and handle its connection to Windows devices. It contains BluetoothLE and Network connectivity helpers.</Description>
     <PackageTags>UWP Toolkit Windows Devices Bluetooth BluetoothLE BLE Networking</PackageTags>
diff --git a/Microsoft.Toolkit.Uwp.DeveloperTools/Microsoft.Toolkit.Uwp.DeveloperTools.csproj b/Microsoft.Toolkit.Uwp.DeveloperTools/Microsoft.Toolkit.Uwp.DeveloperTools.csproj
index 930d09f5abf..8b7ed6e56b7 100644
--- a/Microsoft.Toolkit.Uwp.DeveloperTools/Microsoft.Toolkit.Uwp.DeveloperTools.csproj
+++ b/Microsoft.Toolkit.Uwp.DeveloperTools/Microsoft.Toolkit.Uwp.DeveloperTools.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit Developer Tools</Title>
     <Description>This library provides XAML user controls and services to help developers build their app. It is part of the Windows Community Toolkit.
       
diff --git a/Microsoft.Toolkit.Uwp.UI.Animations/Microsoft.Toolkit.Uwp.UI.Animations.csproj b/Microsoft.Toolkit.Uwp.UI.Animations/Microsoft.Toolkit.Uwp.UI.Animations.csproj
index df6558d9426..c127c5a7431 100644
--- a/Microsoft.Toolkit.Uwp.UI.Animations/Microsoft.Toolkit.Uwp.UI.Animations.csproj
+++ b/Microsoft.Toolkit.Uwp.UI.Animations/Microsoft.Toolkit.Uwp.UI.Animations.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit Animations</Title>
     <Description>
       This library provides helpers and extensions on top of Windows Composition and XAML storyboards. It is part of the Windows Community Toolkit.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid.csproj b/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid.csproj
index 6d63e41a3d6..3d8b40cea38 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid.csproj
+++ b/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid/Microsoft.Toolkit.Uwp.UI.Controls.DataGrid.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="MSBuild.Sdk.Extras">
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit Controls DataGrid</Title>
     <Description>
       This library provides a XAML DataGrid control. It is part of the Windows Community Toolkit.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls.Layout/Microsoft.Toolkit.Uwp.UI.Controls.Layout.csproj b/Microsoft.Toolkit.Uwp.UI.Controls.Layout/Microsoft.Toolkit.Uwp.UI.Controls.Layout.csproj
index 7496c876c9e..dd10bade86a 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls.Layout/Microsoft.Toolkit.Uwp.UI.Controls.Layout.csproj
+++ b/Microsoft.Toolkit.Uwp.UI.Controls.Layout/Microsoft.Toolkit.Uwp.UI.Controls.Layout.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <TargetPlatformVersion Condition="'$(TargetPlatformVersion)' == '' ">10.0.19041.0</TargetPlatformVersion>
     <Title>Windows Community Toolkit Layout</Title>
     <Description>
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls.Markdown/Microsoft.Toolkit.Uwp.UI.Controls.Markdown.csproj b/Microsoft.Toolkit.Uwp.UI.Controls.Markdown/Microsoft.Toolkit.Uwp.UI.Controls.Markdown.csproj
index da2194150b7..9d8dfd8aa28 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls.Markdown/Microsoft.Toolkit.Uwp.UI.Controls.Markdown.csproj
+++ b/Microsoft.Toolkit.Uwp.UI.Controls.Markdown/Microsoft.Toolkit.Uwp.UI.Controls.Markdown.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="MSBuild.Sdk.Extras">
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit Controls Markdown</Title>
     <Description>
       This library provides a XAML MarkdownTextBlock control, an efficient and extensible control that can parse and render markdown. It is part of the Windows Community Toolkit.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/Microsoft.Toolkit.Uwp.UI.Controls.csproj b/Microsoft.Toolkit.Uwp.UI.Controls/Microsoft.Toolkit.Uwp.UI.Controls.csproj
index bf18c15c898..1d86fc82a44 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/Microsoft.Toolkit.Uwp.UI.Controls.csproj
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/Microsoft.Toolkit.Uwp.UI.Controls.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit Controls</Title>
     <Description>
       This library provides XAML templated controls. It is part of the Windows Community Toolkit.
diff --git a/Microsoft.Toolkit.Uwp.UI/Microsoft.Toolkit.Uwp.UI.csproj b/Microsoft.Toolkit.Uwp.UI/Microsoft.Toolkit.Uwp.UI.csproj
index 99767ff0f0c..d5c4be426c6 100644
--- a/Microsoft.Toolkit.Uwp.UI/Microsoft.Toolkit.Uwp.UI.csproj
+++ b/Microsoft.Toolkit.Uwp.UI/Microsoft.Toolkit.Uwp.UI.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <LangVersion>8.0</LangVersion>
     <Title>Windows Community Toolkit UI</Title>
     <Description>
diff --git a/Microsoft.Toolkit.Uwp/Microsoft.Toolkit.Uwp.csproj b/Microsoft.Toolkit.Uwp/Microsoft.Toolkit.Uwp.csproj
index 9ba9b97cd85..8ed2f53bee5 100644
--- a/Microsoft.Toolkit.Uwp/Microsoft.Toolkit.Uwp.csproj
+++ b/Microsoft.Toolkit.Uwp/Microsoft.Toolkit.Uwp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="MSBuild.Sdk.Extras">
 
   <PropertyGroup>
-    <TargetFramework>uap10.0.17763</TargetFramework>
+    <TargetFrameworks>uap10.0.17763</TargetFrameworks>
     <Title>Windows Community Toolkit</Title>
     <Description>This package includes code only helpers such as Colors conversion tool, Storage file handling, a Stream helper class, etc.</Description>
     <PackageTags>UWP Toolkit Windows</PackageTags>

From 01acee9c17de5e01511d923081991f75d622a15e Mon Sep 17 00:00:00 2001
From: Jerome Laban <jerome.laban@nventive.com>
Date: Mon, 4 Jan 2021 16:44:40 -0500
Subject: [PATCH 2/2] refactor: Add partials to classes for Uno Platform

This change enables Uno Platform compatibility forward compatibility.
---
 .../AlignmentGrid/AlignmentGrid.cs                           | 2 +-
 .../FocusTracker/FocusTracker.cs                             | 2 +-
 .../CompositionAnimations/Animations/AnimationBase.cs        | 2 +-
 .../CompositionAnimations/KeyFrames/KeyFrame.cs              | 2 +-
 .../Extensions/AnimationTools.cs                             | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/Carousel/Carousel.cs       | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselItem.cs   | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselPanel.cs  | 2 +-
 .../ColorPicker/ColorPickerButton.cs                         | 2 +-
 .../HeaderedContentControl/HeaderedContentControl.cs         | 2 +-
 .../HeaderedItemsControl/HeaderedItemsControl.cs             | 2 +-
 .../LayoutTransformControl/PropertyChangeEventSource.cs      | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitView.cs     | 2 +-
 .../OrbitView/OrbitViewDataItem.cs                           | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewItem.cs | 2 +-
 .../RadialProgressBar/RadialProgressBar.cs                   | 2 +-
 .../RemoteDevicePicker/RemoteDevicePicker.cs                 | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/RotatorTile/RotatorTile.cs | 2 +-
 .../ScrollHeader/ScrollHeader.cs                             | 2 +-
 Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/Case.cs    | 2 +-
 .../SwitchPresenter/SwitchPresenter.cs                       | 2 +-
 .../TextToolbar/Symbols/List.cs                              | 2 +-
 .../TextToolbar/Symbols/NumberedList.cs                      | 2 +-
 .../TextToolbar/Symbols/Symbol.cs                            | 2 +-
 .../TextToolbar/ToolbarItems/DefaultButton.cs                | 2 +-
 .../TextToolbar/ToolbarItems/ToolbarButton.cs                | 3 ++-
 .../TextToolbar/ToolbarItems/ToolbarSeparator.cs             | 2 +-
 .../TokenizingTextBox/PretokenStringContainer.cs             | 5 ++++-
 Microsoft.Toolkit.Uwp.UI/Behaviors/FocusBehavior.cs          | 2 +-
 Microsoft.Toolkit.Uwp.UI/Converters/BoolToObjectConverter.cs | 2 +-
 .../Converters/DoubleToObjectConverter.cs                    | 2 +-
 .../Converters/EmptyObjectToObjectConverter.cs               | 2 +-
 Microsoft.Toolkit.Uwp.UI/Converters/TypeToObjectConverter.cs | 2 +-
 Microsoft.Toolkit.Uwp.UI/Helpers/BindableValueHolder.cs      | 2 +-
 34 files changed, 38 insertions(+), 34 deletions(-)

diff --git a/Microsoft.Toolkit.Uwp.DeveloperTools/AlignmentGrid/AlignmentGrid.cs b/Microsoft.Toolkit.Uwp.DeveloperTools/AlignmentGrid/AlignmentGrid.cs
index 5981e6b2652..9d2f909f5b9 100644
--- a/Microsoft.Toolkit.Uwp.DeveloperTools/AlignmentGrid/AlignmentGrid.cs
+++ b/Microsoft.Toolkit.Uwp.DeveloperTools/AlignmentGrid/AlignmentGrid.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Toolkit.Uwp.DeveloperTools
     /// <summary>
     /// AlignmentGrid is used to display a grid to help aligning controls
     /// </summary>
-    public class AlignmentGrid : ContentControl
+    public partial class AlignmentGrid : ContentControl
     {
         /// <summary>
         /// Identifies the <see cref="LineBrush"/> dependency property.
diff --git a/Microsoft.Toolkit.Uwp.DeveloperTools/FocusTracker/FocusTracker.cs b/Microsoft.Toolkit.Uwp.DeveloperTools/FocusTracker/FocusTracker.cs
index ee39f30ae9b..8cc04f09ecd 100644
--- a/Microsoft.Toolkit.Uwp.DeveloperTools/FocusTracker/FocusTracker.cs
+++ b/Microsoft.Toolkit.Uwp.DeveloperTools/FocusTracker/FocusTracker.cs
@@ -24,7 +24,7 @@ namespace Microsoft.Toolkit.Uwp.DeveloperTools
     [TemplatePart(Name = "ControlType", Type = typeof(TextBlock))]
     [TemplatePart(Name = "ControlAutomationName", Type = typeof(TextBlock))]
     [TemplatePart(Name = "ControlFirstParentWithName", Type = typeof(TextBlock))]
-    public class FocusTracker : Control
+    public partial class FocusTracker : Control
     {
         /// <summary>
         /// Defines the <see cref="IsActive"/> dependency property.
diff --git a/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/Animations/AnimationBase.cs b/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/Animations/AnimationBase.cs
index 0c7fbd5180f..7ed9584a0db 100644
--- a/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/Animations/AnimationBase.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/Animations/AnimationBase.cs
@@ -14,7 +14,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Animations
     /// Abstract class providing common dependency properties for composition animations
     /// </summary>
     [ContentProperty(Name = nameof(KeyFrames))]
-    public abstract class AnimationBase : DependencyObject
+    public abstract partial class AnimationBase : DependencyObject
     {
         /// <summary>
         /// Identifies the <see cref="Target"/> property
diff --git a/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/KeyFrames/KeyFrame.cs b/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/KeyFrames/KeyFrame.cs
index 4d08d472610..f3fd4c650da 100644
--- a/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/KeyFrames/KeyFrame.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Animations/CompositionAnimations/KeyFrames/KeyFrame.cs
@@ -9,7 +9,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Animations
     /// <summary>
     /// Provides common Dependency properties for KeyFrames
     /// </summary>
-    public abstract class KeyFrame : DependencyObject
+    public abstract partial class KeyFrame : DependencyObject
     {
         /// <summary>
         /// Identifies the <see cref="Key"/> dependency property
diff --git a/Microsoft.Toolkit.Uwp.UI.Animations/Extensions/AnimationTools.cs b/Microsoft.Toolkit.Uwp.UI.Animations/Extensions/AnimationTools.cs
index 2d4deb838bd..63417c900ff 100644
--- a/Microsoft.Toolkit.Uwp.UI.Animations/Extensions/AnimationTools.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Animations/Extensions/AnimationTools.cs
@@ -9,7 +9,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Animations
     /// <summary>
     /// Internal tool to link composite transforms to elements
     /// </summary>
-    internal class AnimationTools : DependencyObject
+    internal partial class AnimationTools : DependencyObject
     {
         /// <summary>
         /// Attached property used to link composite transform with UIElement
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/Carousel.cs b/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/Carousel.cs
index 615ec02db67..31a65945feb 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/Carousel.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/Carousel.cs
@@ -20,7 +20,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// A modern UI Carousel control. Really flexible. Works with touch, keyboard, mouse.
     /// </summary>
-    public class Carousel : ItemsControl
+    public partial class Carousel : ItemsControl
     {
         /// <summary>
         /// Gets or sets the selected item.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselItem.cs b/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselItem.cs
index d8e4dbe9503..5404d04c16a 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselItem.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselItem.cs
@@ -13,7 +13,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// Represents the container for an item in a Carousel control.
     /// </summary>
-    public class CarouselItem : SelectorItem
+    public partial class CarouselItem : SelectorItem
     {
         private const string PointerOverState = "PointerOver";
         private const string PointerOverSelectedState = "PointerOverSelected";
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselPanel.cs b/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselPanel.cs
index 58d553feed6..6e41b5b244a 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselPanel.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/Carousel/CarouselPanel.cs
@@ -18,7 +18,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// The panel used in the <see cref="Carousel"/> control
     /// </summary>
-    public class CarouselPanel : Panel
+    public partial class CarouselPanel : Panel
     {
         // Storyboard on gesture
         private Storyboard storyboard = new Storyboard();
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/ColorPicker/ColorPickerButton.cs b/Microsoft.Toolkit.Uwp.UI.Controls/ColorPicker/ColorPickerButton.cs
index eb6b25f228b..057735d3dd9 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/ColorPicker/ColorPickerButton.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/ColorPicker/ColorPickerButton.cs
@@ -17,7 +17,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// A <see cref="DropDownButton"/> which displays a color as its <c>Content</c> and it's <c>Flyout</c> is a <see cref="ColorPicker"/>.
     /// </summary>
     [TemplatePart(Name = nameof(CheckeredBackgroundBorder), Type = typeof(Border))]
-    public class ColorPickerButton : DropDownButton
+    public partial class ColorPickerButton : DropDownButton
     {
         /// <summary>
         /// Gets the <see cref="Controls.ColorPicker"/> instances contained by the <see cref="DropDownButton"/>.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedContentControl/HeaderedContentControl.cs b/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedContentControl/HeaderedContentControl.cs
index 00da89bf911..ff4c48e985b 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedContentControl/HeaderedContentControl.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedContentControl/HeaderedContentControl.cs
@@ -10,7 +10,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// Provides the base implementation for all controls that contain single content and have a header.
     /// </summary>
-    public class HeaderedContentControl : ContentControl
+    public partial class HeaderedContentControl : ContentControl
     {
         private const string PartHeaderPresenter = "HeaderPresenter";
 
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedItemsControl/HeaderedItemsControl.cs b/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedItemsControl/HeaderedItemsControl.cs
index d854c1804ec..a3b8d8b1cae 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedItemsControl/HeaderedItemsControl.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/HeaderedItemsControl/HeaderedItemsControl.cs
@@ -10,7 +10,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// Represents a control that contains multiple items and has a header.
     /// </summary>
-    public class HeaderedItemsControl : ItemsControl
+    public partial class HeaderedItemsControl : ItemsControl
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="HeaderedItemsControl"/> class.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/LayoutTransformControl/PropertyChangeEventSource.cs b/Microsoft.Toolkit.Uwp.UI.Controls/LayoutTransformControl/PropertyChangeEventSource.cs
index 7b0abe2a868..0a16ee6d97c 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/LayoutTransformControl/PropertyChangeEventSource.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/LayoutTransformControl/PropertyChangeEventSource.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// Allows raise an event when the value of a dependency property changes when a view model is otherwise not necessary.
     /// </summary>
     /// <typeparam name="TPropertyType">Type of the DependencyProperty</typeparam>
-    internal class PropertyChangeEventSource<TPropertyType> : FrameworkElement
+    internal partial class PropertyChangeEventSource<TPropertyType> : FrameworkElement
     {
         private readonly DependencyObject _source;
 
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitView.cs b/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitView.cs
index 936c82423fd..1d5d0de458c 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitView.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitView.cs
@@ -24,7 +24,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     [TemplatePart(Name = "AnchorCanvas", Type = typeof(Canvas))]
     [TemplatePart(Name = "OrbitGrid", Type = typeof(Grid))]
     [TemplatePart(Name = "CenterContent", Type = typeof(ContentPresenter))]
-    public class OrbitView : ItemsControl
+    public partial class OrbitView : ItemsControl
     {
         private const double AnimationDuration = 200;
 
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewDataItem.cs b/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewDataItem.cs
index 375947a0e6b..f5940fb0cc0 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewDataItem.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewDataItem.cs
@@ -11,7 +11,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// A class that can be used to provide data context for <see cref="OrbitView"></see> items by providing distance and diameter values
     /// </summary>
-    public class OrbitViewDataItem : DependencyObject
+    public partial class OrbitViewDataItem : DependencyObject
     {
         /// <summary>
         /// Gets or sets a value indicating the distance from the center.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewItem.cs b/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewItem.cs
index eb8b0a0b13d..72d896b20ee 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewItem.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/OrbitView/OrbitViewItem.cs
@@ -17,7 +17,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     [TemplateVisualState(Name = VsNormal, GroupName = CommonStateGroup)]
     [TemplateVisualState(Name = VsPressed, GroupName = CommonStateGroup)]
     [TemplateVisualState(Name = VsPointerOver, GroupName = CommonStateGroup)]
-    public class OrbitViewItem : ContentControl
+    public partial class OrbitViewItem : ContentControl
     {
         private const string CommonStateGroup = "CommonStates";
         private const string VsNormal = "Normal";
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/RadialProgressBar/RadialProgressBar.cs b/Microsoft.Toolkit.Uwp.UI.Controls/RadialProgressBar/RadialProgressBar.cs
index d2fc0af0f6c..53acae8156e 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/RadialProgressBar/RadialProgressBar.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/RadialProgressBar/RadialProgressBar.cs
@@ -19,7 +19,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     [TemplatePart(Name = OutlineArcPartName, Type = typeof(ArcSegment))]
     [TemplatePart(Name = BarFigurePartName, Type = typeof(PathFigure))]
     [TemplatePart(Name = BarArcPartName, Type = typeof(ArcSegment))]
-    public class RadialProgressBar : ProgressBar
+    public partial class RadialProgressBar : ProgressBar
     {
         private const string OutlineFigurePartName = "OutlineFigurePart";
         private const string OutlineArcPartName = "OutlineArcPart";
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/RemoteDevicePicker/RemoteDevicePicker.cs b/Microsoft.Toolkit.Uwp.UI.Controls/RemoteDevicePicker/RemoteDevicePicker.cs
index c2939e6733d..0e3e0a34627 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/RemoteDevicePicker/RemoteDevicePicker.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/RemoteDevicePicker/RemoteDevicePicker.cs
@@ -25,7 +25,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     [TemplatePart(Name = "StatusType", Type = typeof(ComboBox))]
     [TemplatePart(Name = "AuthorizationType", Type = typeof(ComboBox))]
     [TemplatePart(Name = "AdvancedFiltersGrid", Type = typeof(Grid))]
-    public sealed class RemoteDevicePicker : ContentDialog
+    public sealed partial class RemoteDevicePicker : ContentDialog
     {
         private ListView _listDevices;
         private ComboBox _listDeviceTypes;
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/RotatorTile/RotatorTile.cs b/Microsoft.Toolkit.Uwp.UI.Controls/RotatorTile/RotatorTile.cs
index f89306e336a..f2728ec1823 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/RotatorTile/RotatorTile.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/RotatorTile/RotatorTile.cs
@@ -23,7 +23,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     [TemplatePart(Name = NextPartName, Type = typeof(FrameworkElement))]
     [TemplatePart(Name = TranslatePartName, Type = typeof(TranslateTransform))]
     [TemplatePart(Name = StackPartName, Type = typeof(StackPanel))]
-    public class RotatorTile : Control
+    public partial class RotatorTile : Control
     {
         private const string ScrollerPartName = "Scroller";
         private const string CurrentPartName = "Current";
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/ScrollHeader/ScrollHeader.cs b/Microsoft.Toolkit.Uwp.UI.Controls/ScrollHeader/ScrollHeader.cs
index 21c44fcf9b0..25fc85fbd06 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/ScrollHeader/ScrollHeader.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/ScrollHeader/ScrollHeader.cs
@@ -14,7 +14,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <summary>
     /// Scroll header control to be used with ListViews or GridViews
     /// </summary>
-    public class ScrollHeader : ContentControl
+    public partial class ScrollHeader : ContentControl
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="ScrollHeader"/> class.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/Case.cs b/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/Case.cs
index b0ebd72361f..7829abc2a8f 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/Case.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/Case.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// <see cref="Case"/> is the value container for the <see cref="SwitchPresenter"/>.
     /// </summary>
     [ContentProperty(Name = nameof(Content))]
-    public class Case : DependencyObject
+    public partial class Case : DependencyObject
     {
         internal SwitchPresenter Parent { get; set; } // TODO: Can we remove Parent need here and just use events?
 
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/SwitchPresenter.cs b/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/SwitchPresenter.cs
index cbe6f1f3fcd..0d1202e0bb7 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/SwitchPresenter.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/SwitchPresenter/SwitchPresenter.cs
@@ -15,7 +15,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls
     /// When provided a set of <see cref="Case"/>s and a <see cref="Value"/>, it will pick the matching <see cref="Case"/> with the corresponding <see cref="Case.Value"/>.
     /// </summary>
     [ContentProperty(Name = nameof(SwitchCases))]
-    public sealed class SwitchPresenter : ContentPresenter
+    public sealed partial class SwitchPresenter : ContentPresenter
     {
         /// <summary>
         /// Gets the current <see cref="Case"/> which is being displayed.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/List.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/List.cs
index 533dda72091..34713fa3fbd 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/List.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/List.cs
@@ -7,7 +7,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.TextToolbarSymbols
     /// <summary>
     /// Creates a List Icon
     /// </summary>
-    public class List : Symbol
+    public partial class List : Symbol
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="List"/> class.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/NumberedList.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/NumberedList.cs
index e91e93b5952..f10054e5891 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/NumberedList.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/NumberedList.cs
@@ -7,7 +7,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.TextToolbarSymbols
     /// <summary>
     /// Creates a Numbered List Icon
     /// </summary>
-    public class NumberedList : Symbol
+    public partial class NumberedList : Symbol
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="NumberedList"/> class.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/Symbol.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/Symbol.cs
index 3dd75cca0e3..fb900866707 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/Symbol.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/Symbols/Symbol.cs
@@ -13,7 +13,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.TextToolbarSymbols
     /// </summary>
     [TemplateVisualState(GroupName = Common, Name = Normal)]
     [TemplateVisualState(GroupName = Common, Name = Disabled)]
-    public abstract class Symbol : Control
+    public abstract partial class Symbol : Control
     {
         internal const string Common = "CommonStates";
         internal const string Normal = "Normal";
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/DefaultButton.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/DefaultButton.cs
index 1bdfc899965..1668d8df41c 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/DefaultButton.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/DefaultButton.cs
@@ -9,7 +9,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.TextToolbarButtons
     /// <summary>
     /// Specifies a DefaultButton, modifies a Button Instance
     /// </summary>
-    public class DefaultButton : DependencyObject
+    public partial class DefaultButton : DependencyObject
     {
         /// <summary>
         /// Identifies the <see cref="IsVisible"/> dependency property.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarButton.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarButton.cs
index a681b702ea6..f74fa9925ea 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarButton.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarButton.cs
@@ -14,7 +14,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.TextToolbarButtons
     /// <summary>
     /// An Interactive button in the TextToolbar, to perform a formatting task.
     /// </summary>
-    public class ToolbarButton : AppBarButton, IToolbarItem, INotifyPropertyChanged
+    public partial class ToolbarButton : AppBarButton, IToolbarItem, INotifyPropertyChanged
     {
         /// <summary>
         /// Identifies the <see cref="ToolTip"/> dependency property.
@@ -164,6 +164,7 @@ public int Position
             set
             {
                 _position = value;
+
                 PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Position)));
             }
         }
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarSeparator.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarSeparator.cs
index 35c3a5905f1..9c0ccd41d91 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarSeparator.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TextToolbar/ToolbarItems/ToolbarSeparator.cs
@@ -9,7 +9,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Controls.TextToolbarButtons
     /// <summary>
     /// Separates a collection of <see cref="IToolbarItem"/>
     /// </summary>
-    public class ToolbarSeparator : AppBarSeparator, IToolbarItem
+    public partial class ToolbarSeparator : AppBarSeparator, IToolbarItem
     {
         /// <summary>
         /// Initializes a new instance of the <see cref="ToolbarSeparator"/> class.
diff --git a/Microsoft.Toolkit.Uwp.UI.Controls/TokenizingTextBox/PretokenStringContainer.cs b/Microsoft.Toolkit.Uwp.UI.Controls/TokenizingTextBox/PretokenStringContainer.cs
index eacd5a2a772..5f5ecdecd1a 100644
--- a/Microsoft.Toolkit.Uwp.UI.Controls/TokenizingTextBox/PretokenStringContainer.cs
+++ b/Microsoft.Toolkit.Uwp.UI.Controls/TokenizingTextBox/PretokenStringContainer.cs
@@ -6,7 +6,10 @@
 
 namespace Microsoft.Toolkit.Uwp.UI.Controls
 {
-    internal class PretokenStringContainer : DependencyObject, ITokenStringContainer
+    /// <summary>
+    /// <see cref="TokenizingTextBox"/> support class
+    /// </summary>
+    internal partial class PretokenStringContainer : DependencyObject, ITokenStringContainer
     {
         public string Text
         {
diff --git a/Microsoft.Toolkit.Uwp.UI/Behaviors/FocusBehavior.cs b/Microsoft.Toolkit.Uwp.UI/Behaviors/FocusBehavior.cs
index 01099e13808..8c1e3a84fba 100644
--- a/Microsoft.Toolkit.Uwp.UI/Behaviors/FocusBehavior.cs
+++ b/Microsoft.Toolkit.Uwp.UI/Behaviors/FocusBehavior.cs
@@ -168,7 +168,7 @@ public sealed class FocusTargetList : List<FocusTarget>
     /// <summary>
     /// A target for the <see cref="FocusBehavior"/>.
     /// </summary>
-    public sealed class FocusTarget : DependencyObject
+    public sealed partial class FocusTarget : DependencyObject
     {
         /// <summary>
         /// The DP to store the <see cref="Control"/> property value.
diff --git a/Microsoft.Toolkit.Uwp.UI/Converters/BoolToObjectConverter.cs b/Microsoft.Toolkit.Uwp.UI/Converters/BoolToObjectConverter.cs
index 43054525db6..7f35d9e491a 100644
--- a/Microsoft.Toolkit.Uwp.UI/Converters/BoolToObjectConverter.cs
+++ b/Microsoft.Toolkit.Uwp.UI/Converters/BoolToObjectConverter.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Converters
     /// This class converts a boolean value into an other object.
     /// Can be used to convert true/false to visibility, a couple of colors, couple of images, etc.
     /// </summary>
-    public class BoolToObjectConverter : DependencyObject, IValueConverter
+    public partial class BoolToObjectConverter : DependencyObject, IValueConverter
     {
         /// <summary>
         /// Identifies the <see cref="TrueValue"/> property.
diff --git a/Microsoft.Toolkit.Uwp.UI/Converters/DoubleToObjectConverter.cs b/Microsoft.Toolkit.Uwp.UI/Converters/DoubleToObjectConverter.cs
index 0d7a43b9852..07d9a106532 100644
--- a/Microsoft.Toolkit.Uwp.UI/Converters/DoubleToObjectConverter.cs
+++ b/Microsoft.Toolkit.Uwp.UI/Converters/DoubleToObjectConverter.cs
@@ -15,7 +15,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Converters
     /// Otherwise the logic looks for the value to be GreaterThan or LessThan the specified value.
     /// The ConverterParameter can be used to invert the logic.
     /// </summary>
-    public class DoubleToObjectConverter : DependencyObject, IValueConverter
+    public partial class DoubleToObjectConverter : DependencyObject, IValueConverter
     {
         /// <summary>
         /// Identifies the <see cref="TrueValue"/> property.
diff --git a/Microsoft.Toolkit.Uwp.UI/Converters/EmptyObjectToObjectConverter.cs b/Microsoft.Toolkit.Uwp.UI/Converters/EmptyObjectToObjectConverter.cs
index 2ae55cab138..fca9fa6a673 100644
--- a/Microsoft.Toolkit.Uwp.UI/Converters/EmptyObjectToObjectConverter.cs
+++ b/Microsoft.Toolkit.Uwp.UI/Converters/EmptyObjectToObjectConverter.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Converters
     /// This class converts an object value into a an object (if the value is null returns the false value).
     /// Can be used to bind a visibility, a color or an image to the value of an object.
     /// </summary>
-    public class EmptyObjectToObjectConverter : DependencyObject, IValueConverter
+    public partial class EmptyObjectToObjectConverter : DependencyObject, IValueConverter
     {
         /// <summary>
         /// Identifies the <see cref="NotEmptyValue"/> property.
diff --git a/Microsoft.Toolkit.Uwp.UI/Converters/TypeToObjectConverter.cs b/Microsoft.Toolkit.Uwp.UI/Converters/TypeToObjectConverter.cs
index e7ad49ac726..0e619fddf85 100644
--- a/Microsoft.Toolkit.Uwp.UI/Converters/TypeToObjectConverter.cs
+++ b/Microsoft.Toolkit.Uwp.UI/Converters/TypeToObjectConverter.cs
@@ -11,7 +11,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Converters
     /// <summary>
     /// This class returns an object or another, depending on whether the type of the provided value matches another provided Type.
     /// </summary>
-    public class TypeToObjectConverter : DependencyObject, IValueConverter
+    public partial class TypeToObjectConverter : DependencyObject, IValueConverter
     {
         /// <summary>
         /// Identifies the <see cref="TrueValue"/> property.
diff --git a/Microsoft.Toolkit.Uwp.UI/Helpers/BindableValueHolder.cs b/Microsoft.Toolkit.Uwp.UI/Helpers/BindableValueHolder.cs
index a63c70a0c90..5b8322214a9 100644
--- a/Microsoft.Toolkit.Uwp.UI/Helpers/BindableValueHolder.cs
+++ b/Microsoft.Toolkit.Uwp.UI/Helpers/BindableValueHolder.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Toolkit.Uwp.UI.Helpers
     /// Can be used to change several objects' properties at a time.
     /// </summary>
     [ContentProperty(Name = nameof(Value))]
-    public class BindableValueHolder : DependencyObject
+    public partial class BindableValueHolder : DependencyObject
     {
         /// <summary>
         /// Identifies the <see cref="Value"/> property.