title: How to clear WebBrowser control in WPF
body: <p>I'm using the code from the following link: <a href="https://stackoverflow.com/questions/2585782/displaying-html-from-string-in-wpf-webbrowser-control/2586255">Displaying html from string in WPF WebBrowser control</a></p>
  
  <p>It works well except when I delete the item containing the html, <code>e.NewValue</code> becomes <code>null</code> and I get an exception. Is there a way to return the WebBrowser control to a blank screen?</p>