title: Windows 8: How to detect when a UI element is dragged off the screen
body: <p>How to detect when a UI element is dragged off the screen for a Windows 8 store app.</p>
  
  <p>I have a list of items that are displayed to the user.
  I want the user to flick items off the screen that he/she wants to remove from their view.</p>
  
  <p>Thanks,
  Scott Nimrod</p>