Thanks for contacting us and for reporting this issue.
We would kindly like to ask you to share with us the code that you are using (both XAML and C#) to implement the scenario. It will also be helpful if you manage to prepare a sample Windows Phone 7
application that we can use to reproduce the case and directly see what causes the erroreous behavior.
Please note that in order to be able to attach a sample project, you will need to open a new support ticket.
Thanks for your time.
All the best,
the Telerik team
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