private void __dragStart(object obj)
{
DragEvent evt = (DragEvent)obj;
evt.PreventDefault();
this.StartDrag();
}
private void __startDrag(object param)
{
reset();
DragEvent evt = new DragEvent(DragEvent.DRAG_START);
_owner.DispatchEventObsolete(evt);
if (!evt.isDefaultPrevented)
{
_owner.StartDrag(_owner.dragBounds);
}
}