title: WinRT XamlControl Preview Image
body: <p>I got a C# WinRT MetroApp Project...</p>
  
  <p>I have a Overview of Items implemented with a GridView looking like this:
  <img src="https://i.stack.imgur.com/TOEqG.png" alt="Overview"></p>
  
  <p>If i click on one of these Items i get a DetailView of the item like this:<img src="https://i.stack.imgur.com/yEFCd.png" alt="Detail"></p>
  
  <p>The Content of the DetailView is a Custom XAML Control.
  I do want to have a samll Preview of each of my DetailView in the Overview Items..</p>
  
  <p>My question is: Whats the best way to do this in WinRT and how? Is it possible to render an Image of my custom XAML Control in winRT ? </p>
  
  <p>please help me!! </p>