RichTextBox and MVVM

[Brian]

UPDATE
This turned out to be an issue on my end with my view model.  The code below works fine.




I have scoured the forum but can't seem to find a full example of how to use a RichTextBox with MVVM.  I am trying to import and export to/from the RichTextBox from my view model but it is not working.  Here is my code: 

 

 

 

 

<telerikFormatProvider:TxtDataProvider RichTextBox="{Binding ElementName=myRichTextBox}" Text="{Binding MyString, Mode=TwoWay}" />
<telerik:RadRichTextBox Name="myRichTextBox" />

where 'MyString' is a string property in my view model.  However, nothing shows up in my RichTextBox.  Any ideas as to what I'm doing wrong?

Tks.