I guess that you are targetting an effect similar to the one that is illustrated on the attached image. You can achieve it with a custom DataTemplate, like this:
Can you please confirm, whether this is the desired effect?
Regards,
Ivan Ivanov
Telerik
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for SILVERLIGHT.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely. Sign up for Free application insights >>