How to get the record ?(addDropHandler)

[heavenite]

  TreeGrid rightGrid = new TreeGrid();
  .....
  rightGrid.addDropHandler(new DropHandler() {
   
   @Override
   public void onDrop(DropEvent event) {
     TODO Auto-generated method stub
    Canvas target = EventHandler.getTarget();
    //How to get the record ?
   }
  });

[GWTDummies]

final ListGridRecord[] recordSources = event.getDropRecords();

[heavenite]

I need a Target,not is DragTarget.