We have two examples that I think will help you implement the desired scenario. I have attached them to the thread.
One of them shows how to create a RadDock object on the client by initially dragging a fixed dock inside a zone that acts as a toolbox. Please note that there is no server side interaction - the docks are created on the client only. You should modify it to suit your specific scenario.
The other example shows how to create RadDock objects by having the initial drag come from a RadTreeView control. This example creates the dock controls on the server-side and adds them to the specific zone.
I hope this helps.
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