https://feedback.telerik.com/aspnet-ajax/1375050-fix-when-radlistbox-item-is-dragged-over-the-radtreeview-control-if-nodeclick-server-side-event-is-attachedthe-radtreeview-starts-sending-several-consecutive-requests-to-the-server-which-causes-some
FIX: When RadListBox item is dragged over the RadTreeView control if NodeClick server-side event is...