We have tried such scenario and we have set a solution for you. The problem is that if you try to remove all items in the collection, the RadContextMenu
will close the popup as it doesn't have what to show. Meanwhile you are adding some items and this is causing the confusion.
In our simple application we are using Dispatcher
to add items dynamically, but we remove all not needed items after we've added the new Groups
Please check the attachment and inform us if you still have any concerns.
All the best,
the Telerik team