Popup Take Up the Full Screen WP7

Question

How do I make a Popup take up the full width and height of the screen? I don't want to set explicit height and width of 480x800.

Answer 1

I use this function:

public static Size GetScreenSize()
{
  return Application.Current.RootVisual.RenderSize;
}

As Derek points out, you need to handle rotation, etc, yourself.

Answer 2

Popup has quite poor performance on WP7, doesn't support rotation and is difficult to size, so to implement a full screen popup you'd be better off using a Grid, which by default will fill the page if you put it at the root of the Page.