RadTabbedWindow as MainWindow

[Timothy J]

In our app.xaml.cs we have been using this.MainWindow = new MyMainWindow().

We are trying to switch to a RadTabbedWindow, but RadTabbedWindow is not a Window, it is a UserControl.  What would be a way to use this and keep the this.MainWIndow?

WPF TabbedWindow - Getting Started - Telerik UI for WPF

[Dilyan Traykov]

Hello Timothy,

Indeed, as the RadTabbedWindow class inherits from RadWindow (which is actually a HeaderedContentControl) it is not technically a Window and cannot be assigned as the MainWindow of the application.

What I can suggest instead would be to introduce an additional property of the App class:

	public partial class App : Application
	{
		public RadWindow MainTabbedWindow { get; set; }

		protected override void OnStartup(StartupEventArgs e)
		{
			this.MainTabbedWindow = new MyMainWindow();
                        this.MainTabbedWindow.Show();
			base.OnStartup(e);
		}
	}

You can then use this property throughout your application when needed:

var window = (App.Current as App).MainTabbedWindow;

Can you please give this a try and let me know if such an approach would work for you?

Regards,
Dilyan Traykov
Progress Telerik

[Timothy J]

Sure.  That could work.  Thanx.