Update NoChromeWindow.xaml

Author: yanjinhuagood

src/WPFDevelopers.Samples.Shared/ExampleViews/NoChromeWindow.xaml

@@ -2,6 +2,7 @@
     x:Class="WPFDevelopers.Samples.ExampleViews.NoChromeWindow"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:controls="clr-namespace:WPFDevelopers.Samples.Controls"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     xmlns:wd="https://github.com/WPFDevelopersOrg/WPFDevelopers"
@@ -48,5 +49,16 @@
             </Button>
         </Grid>
     </wd:Window.TitleBar>
-    <Grid />
+    <controls:CodeViewer>
+        <Grid>
+            <TextBlock
+                HorizontalAlignment="Center"
+                VerticalAlignment="Center"
+                Text="Content" />
+        </Grid>
+        <controls:CodeViewer.SourceCodes>
+            <controls:SourceCodeModel CodeSource="/WPFDevelopers.SamplesCode;component/ExampleViews/NoChromeWindow.xaml" CodeType="Xaml" />
+            <controls:SourceCodeModel CodeSource="/WPFDevelopers.SamplesCode;component/ExampleViews/NoChromeWindow.xaml.cs" CodeType="CSharp" />
+        </controls:CodeViewer.SourceCodes>
+    </controls:CodeViewer>
 </wd:Window>