Rows in any grid can be dragged and dropped to other grids and vice versa.
This is done by:
dropModel.acceptplay crucial role in creating draggable / droppable relation between grids.
dragModel.isDraggableis used to set up conditional rules for selective dragability of rows.
dropModel.isDroppableis used to set up conditional rules for selective droppability over rows.
dropModel.dropcallback does the actual manipulation of moving or copying rows when dragged row objects are finally dropped on destination rows. Grid has default implementation for this callback which takes care of most of the cases, however it can be overridden to customize the end result.
First of all mutiple row selection is turned on or checkbox selection is turned on.
dragModel.dragNodes method is implemented to return array of selected or checked rows.