<Window x:Class="Windows.OpenFileTest"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="OpenFileTest" Height="300" Width="300" 
    >
  <DockPanel Margin="5">
    <Button DockPanel.Dock="Top" Click="cmdOpen_Click">Open</Button>
    <ListBox Name="lstFiles"></ListBox>
  </DockPanel>
</Window>
