<UserControl x:Class="FooEditor.DocumentWindow"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:foo="clr-namespace:FooEditEngine.WPF;assembly=FooEditEngine.WPF"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
    <DockPanel Name="DockPanel">
        <foo:FooTextBox Name="FooTextBox" ContextMenu="{DynamicResource ContextMenu}"/>
    </DockPanel>
</UserControl>
