Getting Parent Window for UserControl in WPF

Again a small item that may take you some time to search and find on the internet. Suppose you are working on a WPF based application and you have a UserControl that you want to host inside of a window. In addition you need the window within which the UserControl is hosted. To find out that parent window you might wonder whether you could use the property 'Parent'. Well that might work in some cases but in other cases it might not. For example the parent might be a Canvas and then it starts to become tricky. So here is a solution that should make it a bit easier. It uses the static method Window.GetWindow() and passes a reference to the UserControl instance as a parameter:

   public partial class FooControl : UserControl {
      public FooControl() {
         InitializeComponent();
      }

      private void _barButton_Click(object sender, RoutedEventArgs e) {
         var window = new MyWindow {
            WindowStartupLocation = WindowStartupLocation.CenterOwner,
            Owner = Window.GetWindow(this)
         };
         if( window.ShowDialog() == true) {
            // Ok button clicked, do something useful here...
         }
      }
   }