title: How to import a .rtf file to silverlight 4 richtextbox?
body: <p>I have a .rtf file and want to put it in a richtextbox in silverlight 4. Unfortunately we do not have .rtf property in silverlight 4 richtextbox, we only have .xaml.</p>
  
  <p>So what i did is to create a FlowDocument, than load the .rtf to this FlowDocument, then format it to xaml. then assigned it to richtextbox. But i got a argumentexception.</p>
  
  <p>How to import a .rtf file to silverlight 4 richtextbox?</p>
  
  <p>Thanks!</p>