diff --git a/Testing/Demo.Docking/App.xaml.cs b/Testing/Demo.Docking/App.xaml.cs
new file mode 100644
--- /dev/null
+++ b/Testing/Demo.Docking/App.xaml.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Windows;
+
+namespace Sample3
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}