Hello Anne Lyon,
Please set
EventName="MouseRightButtonUp" or remove this setter because this is the default value.
This will prevent Silverlight context menu from opening.
Let us know if you need more help.
Best wishes,
Hristo
the Telerik team
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the
Telerik Public Issue Tracking system and vote to affect the priority of the items.