title: Notification to View from ViewModel using MVVM Light
body: <p>In my silverlight application I need to send a notification from a ViewModel to a View. In response to it a method on a UI control should be called. I know about 2 ways to accomplish this:</p>
  
  <p>1) Raise an event in the ViewModel and handle it in the View's code behind.
  <br/>2) Send a message from the ViewModel (using the MVVM Light messaging support) and respond to this message in the View's code behind.</p>
  
  <p>I'd like to know if there is a way to accomplish this without using code in the View's code behind, for instance through some kind of data binding in the XAML?</p>
  
  <p>Please share any ideas.</p>
  
  <p><strong>Additional info about what the View should do when it receives notification from ViewModel</strong>
  <br/>In the XAML of the View I declare an instance of a custom Silverlight grid control which has the following method:
  <br/><code>public void FileExportFinished(bool fileExportSucceeded)</code>
  <br/>I want to call this method from the XAML in response to the notification received from the ViewModel passing a boolean value received with the notification.</p>