The behavior you are describing is unusual and I am not able to replicate it on my end.
As you could see in our online demo of the TreeList - Drag-and-drop functionality
, the dragged item remains selected no matter where it is dragged. Could you please refer to the demo and see what differs in your project.
Additionally, if you continue to experience this behavior, could you please elaborate on what RadControls version you are using, so we could try to replicate this locally.
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