I have problem with using DragAndDropManager for Telerik version 2012.1.326.40. Recently I find out that one of my old projects has problem with drag end drop with some list boxes. It was using RadDragAndDropManager to handle drag and drop. So I switched to DragAndDropManager. However in 2012.1.326 version of controls there is no DragDropPayloadManager. All examples are using this class to pass data so my question is can I implement DragAndDropManager in this version of controls and how to replace DragDropPayloadManager.