Thank you for contacting Telerik support.
I would like to clarify that RadItemDragDropManager
example does not support scrolling and you can Drag&Drop only visible items. I can suggest checking the items in BeginDrag
method. For example:
RadListDataItem selectedItems =
))//exclude this item from D&D
I hope this will be useful for you. Should you have further questions, I would be glad to help.
the Telerik team