How to set the location of a WPF window?

Question

I have a List View in which I have defined a custom cell as a user control.

In the custom cell I given user hyperlink, I am showing a WPF dialog when user clicks on

Answer 1

Window.Left and Window.Top

var location = myTextBlock.PointToScreen(new Point(0, 0));
window.Left  = location.X;
window.Top   = location.Y - window.Height;