fix merge issue

Author: vgromfeld

Microsoft.Toolkit.Uwp.SampleApp/Microsoft.Toolkit.Uwp.SampleApp.csproj

@@ -969,10 +969,9 @@
     </Page>
     <Content Include="SamplePages\TabbedCommandBar\TabbedCommandBar.bind">
       <SubType>Designer</SubType>
-    </Page>
+    </Content>
     <Content Include="SamplePages\MetadataControl\MetadataControlCode.bind">
       <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
     </Content>
     <Page Include="SamplePages\MetadataControl\MetadataControlPage.xaml">
       <SubType>Designer</SubType>

Microsoft.Toolkit.Uwp.SampleApp/SamplePages/MetadataControl/MetadataControlPage.xaml.cs

@@ -1,12 +1,12 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Collections.ObjectModel;
 using Microsoft.Toolkit.Uwp.SampleApp.Common;
+using Microsoft.Toolkit.Uwp.UI;
 using Microsoft.Toolkit.Uwp.UI.Controls;
-using Microsoft.Toolkit.Uwp.UI.Extensions;
+using System;
+using System.Collections.ObjectModel;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 
@@ -35,7 +35,7 @@ public MetadataControlPage()
 
         public void OnXamlRendered(FrameworkElement control)
         {
-            _metadataControl = control.FindChildByName("metadataControl") as MetadataControl;
+            _metadataControl = control.FindChild("metadataControl") as MetadataControl;
             if (_metadataControl != null)
             {
                 _metadataControl.Items = _units;