<UserControl x:Class="Controls.Extended.Page" 
        xmlns="http://schemas.microsoft.com/client/2007"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Width="640" 
        Height="480"
        >
 
    <Canvas x:Name="LayoutRoot" > 

    </Canvas> 
</UserControl>
