How do you center your main window in WPF?

Question

I have a WPF application and I need to know how to center the wain window programatically (not in XAML).

I need to be able to do this both at startup and in response

Answer 1

Rect workArea = System.Windows.SystemParameters.WorkArea;
this.Left = (workArea.Width - this.Width) / 2 + workArea.Left;
this.Top = (workArea.Height - this.Height) / 2 + workArea.Top;

This takes into account the taskbar size (by using System.Windows.SystemParameters.WorkArea) and position (by adding workArea.Left and workArea.Top)