title: How to show Popup/Flyout at clicked item in ListView/GridView in Windows Store App
body: <p>I am working on a Windows Store App and would like to show some additional information about an Item that was clicked in ListView or GridView. This information should be shown in a Popup or Flyout (hast do be definded in C#, not in XAML) next to the clicked item.</p>
  
  <p>The Problem is, that the ItemClick event handler gives no information about the clicked visual item but only about the data item. Thus I have no information about where to show the Flyout or Popup on screen.</p>