onDrop method
Implementation
Future<bool> onDrop(BuildContext context, DraggableModel draggable) async
{
bool ok = true;
EventHandler e = EventHandler(this);
//////////////////////
/* Fire Drop Events */
//////////////////////
if ((ok) && (!S.isNullOrEmpty(ondrop))) ok = await e.execute(_ondrop);
//////////////////////
/* Fire Drag Events */
//////////////////////
// requires fix
//if ((ok) && (draggable != null) && (!S.isNullOrEmpty(draggable.ondrop))) ok = await e.execute(draggable.ondrop);
return ok;
}