Thank you for using our support system.
I am afraid that our RadTreeView does not support this functionality. We did some research and it turned out that there is no good way to achieve this behavior. A possible workaround would prove too difficult and unstable.
Up to now, we have not planned to include such behavior but since you requested it, it has been added to our To-Do list and will be implemented in one of our future releases.
Please excuse us for the inconvenience and do not hesitate to write back if you have other questions.
the Telerik team
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