diff --git a/Samples/Native/MyApp/MainUserControl.cpp b/Samples/Native/MyApp/MainUserControl.cpp
index 3128c39..33d0cd7 100644
--- a/Samples/Native/MyApp/MainUserControl.cpp
+++ b/Samples/Native/MyApp/MainUserControl.cpp
@@ -1,5 +1,6 @@
 #include "pch.h"
 #include "MainUserControl.h"
+#include <TreeViewNodeViewModel.h>
 
 using namespace winrt;
 using namespace Windows::UI::Xaml;
@@ -10,15 +11,21 @@ namespace winrt::MyApp::implementation
     {  
 
         InitializeComponent();
+        for (int i = 0; i < 800; i++) {
+            auto child = winrt::make<MyApp::implementation::TreeViewNodeViewModel>(L"Label", winrt::Windows::Foundation::Uri{ nullptr }, L"");
+
+            treeView().Nodes().Append(child);
+        }
     }
 
     winrt::hstring MainUserControl::MyProperty()
     {
-        return userControl().MyProperty();
+        return hstring{};
+        // return userControl().MyProperty();
     }
 
     void MainUserControl::MyProperty(winrt::hstring value)
     {
-        userControl().MyProperty(value);
+        // userControl().MyProperty(value);
     }
 }
diff --git a/Samples/Native/MyApp/MainUserControl.xaml b/Samples/Native/MyApp/MainUserControl.xaml
index f910969..8203f3e 100644
--- a/Samples/Native/MyApp/MainUserControl.xaml
+++ b/Samples/Native/MyApp/MainUserControl.xaml
@@ -10,11 +10,7 @@
     XYFocusKeyboardNavigation="Enabled"
     mc:Ignorable="d">
 
-    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center" XYFocusKeyboardNavigation="Enabled">
-        <my:MyUserControl MyProperty="Hello from Xaml!" XYFocusKeyboardNavigation="Enabled" x:Name="userControl"/>
-        <muxc:ColorPicker XYFocusKeyboardNavigation="Enabled" />
-        <muxc:NavigationView PaneTitle="Welcome">
-            <TextBlock Text="Win UI Navigation" VerticalAlignment="Center" HorizontalAlignment="Center" Style="{StaticResource TitleTextBlockStyle}"/>
-        </muxc:NavigationView>      
+    <StackPanel>
+        <local:TreeViewHostUserControl x:Name="treeView"></local:TreeViewHostUserControl>
     </StackPanel>
 </UserControl>
diff --git a/Samples/Native/MyApp/MyApp.vcxproj b/Samples/Native/MyApp/MyApp.vcxproj
index a9dd134..c35221c 100644
--- a/Samples/Native/MyApp/MyApp.vcxproj
+++ b/Samples/Native/MyApp/MyApp.vcxproj
@@ -343,21 +343,21 @@
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
-    <Import Project="..\..\..\packages\Microsoft.UI.Xaml.2.3.191125001-prerelease\build\native\Microsoft.UI.Xaml.targets" Condition="Exists('..\..\..\packages\Microsoft.UI.Xaml.2.3.191125001-prerelease\build\native\Microsoft.UI.Xaml.targets')" />
     <Import Project="..\..\..\packages\SceneLoaderComponent.1.0.0.1\build\native\SceneLoaderComponent.targets" Condition="'$(Platform)'=='x64' and Exists('..\..\..\packages\SceneLoaderComponent.1.0.0.1\build\native\SceneLoaderComponent.targets')" />
     <Import Project="..\..\..\packages\Microsoft.Toolkit.Win32.UI.XamlApplication.6.1.2\build\native\Microsoft.Toolkit.Win32.UI.XamlApplication.targets" Condition="Exists('..\..\..\packages\Microsoft.Toolkit.Win32.UI.XamlApplication.6.1.2\build\native\Microsoft.Toolkit.Win32.UI.XamlApplication.targets')" />
     <Import Project="..\..\..\packages\Microsoft.Windows.CppWinRT.2.0.191111.2\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('..\..\..\packages\Microsoft.Windows.CppWinRT.2.0.191111.2\build\native\Microsoft.Windows.CppWinRT.targets')" />
+    <Import Project="..\..\..\packages\Microsoft.UI.Xaml.2.7.0-prerelease.210816001\build\native\Microsoft.UI.Xaml.targets" Condition="Exists('..\..\..\packages\Microsoft.UI.Xaml.2.7.0-prerelease.210816001\build\native\Microsoft.UI.Xaml.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\..\..\packages\Microsoft.UI.Xaml.2.3.191125001-prerelease\build\native\Microsoft.UI.Xaml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\Microsoft.UI.Xaml.2.3.191125001-prerelease\build\native\Microsoft.UI.Xaml.targets'))" />
     <Error Condition="!Exists('..\..\..\packages\SceneLoaderComponent.1.0.0.1\build\native\SceneLoaderComponent.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\SceneLoaderComponent.1.0.0.1\build\native\SceneLoaderComponent.props'))" />
     <Error Condition="!Exists('..\..\..\packages\SceneLoaderComponent.1.0.0.1\build\native\SceneLoaderComponent.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\SceneLoaderComponent.1.0.0.1\build\native\SceneLoaderComponent.targets'))" />
     <Error Condition="!Exists('..\..\..\packages\Microsoft.Toolkit.Win32.UI.XamlApplication.6.1.2\build\native\Microsoft.Toolkit.Win32.UI.XamlApplication.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\Microsoft.Toolkit.Win32.UI.XamlApplication.6.1.2\build\native\Microsoft.Toolkit.Win32.UI.XamlApplication.props'))" />
     <Error Condition="!Exists('..\..\..\packages\Microsoft.Toolkit.Win32.UI.XamlApplication.6.1.2\build\native\Microsoft.Toolkit.Win32.UI.XamlApplication.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\Microsoft.Toolkit.Win32.UI.XamlApplication.6.1.2\build\native\Microsoft.Toolkit.Win32.UI.XamlApplication.targets'))" />
     <Error Condition="!Exists('..\..\..\packages\Microsoft.Windows.CppWinRT.2.0.191111.2\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\Microsoft.Windows.CppWinRT.2.0.191111.2\build\native\Microsoft.Windows.CppWinRT.props'))" />
     <Error Condition="!Exists('..\..\..\packages\Microsoft.Windows.CppWinRT.2.0.191111.2\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\Microsoft.Windows.CppWinRT.2.0.191111.2\build\native\Microsoft.Windows.CppWinRT.targets'))" />
+    <Error Condition="!Exists('..\..\..\packages\Microsoft.UI.Xaml.2.7.0-prerelease.210816001\build\native\Microsoft.UI.Xaml.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\packages\Microsoft.UI.Xaml.2.7.0-prerelease.210816001\build\native\Microsoft.UI.Xaml.targets'))" />
   </Target>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/Samples/Native/MyApp/MyApp.vcxproj.filters b/Samples/Native/MyApp/MyApp.vcxproj.filters
index e5b1052..c3bc84d 100644
--- a/Samples/Native/MyApp/MyApp.vcxproj.filters
+++ b/Samples/Native/MyApp/MyApp.vcxproj.filters
@@ -58,4 +58,4 @@
     <Midl Include="TreeViewNodeViewModel.idl" />
     <Midl Include="FilePathToBitmapImageConverter.idl" />
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/Samples/Native/MyApp/TreeViewHostUserControl.xaml b/Samples/Native/MyApp/TreeViewHostUserControl.xaml
index 7210182..e806705 100644
--- a/Samples/Native/MyApp/TreeViewHostUserControl.xaml
+++ b/Samples/Native/MyApp/TreeViewHostUserControl.xaml
@@ -11,7 +11,11 @@
         <ResourceDictionary Source="ms-appx:///Microsoft.UI.Xaml/DensityStyles/Compact.xaml" />
     </UserControl.Resources>
     <Grid>
-        <muxc:TreeView ItemInvoked="TreeView_ItemInvoked" ItemsSource="{x:Bind Nodes}" ScrollViewer.HorizontalScrollMode="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto">
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="30" />
+            <ColumnDefinition Width="*" />
+        </Grid.ColumnDefinitions>
+        <muxc:TreeView Grid.Column="1" SelectionMode="Multiple" ItemInvoked="TreeView_ItemInvoked" ItemsSource="{x:Bind Nodes}" ScrollViewer.HorizontalScrollMode="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto">
             <muxc:TreeView.ItemTemplate>
                 <DataTemplate x:DataType="local:TreeViewNodeViewModel">
                     <muxc:TreeViewItem ItemsSource="{x:Bind Children}">
diff --git a/Samples/Native/MyApp/packages.config b/Samples/Native/MyApp/packages.config
index d0b7629..a7c85e4 100644
--- a/Samples/Native/MyApp/packages.config
+++ b/Samples/Native/MyApp/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Toolkit.Win32.UI.XamlApplication" version="6.1.2" targetFramework="native" />
-  <package id="Microsoft.UI.Xaml" version="2.3.191125001-prerelease" targetFramework="native" />
+  <package id="Microsoft.UI.Xaml" version="2.7.0-prerelease.210816001" targetFramework="native" />
   <package id="Microsoft.Windows.CppWinRT" version="2.0.191111.2" targetFramework="native" />
   <package id="SceneLoaderComponent" version="1.0.0.1" targetFramework="native" />
 </packages>
\ No newline at end of file