dragAcceptedFromTarget abstract method
This function is called after the drop was accepted from the drop Target if it was no reorder but a drag and drop between different widgets. Here you can e.g. remove the dragged items if this was a "move" action, mark them as e.g. assigned or do whatever you need... If this was a copy action you can e.g. also just ignore this event.
Implementation
void dragAcceptedFromTarget(
MhDragState dragState, List droppedItems, bool removeItemsOnMove);