public void RegisterDropType(Type type, DragDropTypeHandler handler)
{
if (drag_drop_type_handlers.ContainsKey(type))
{
throw new Exception(String.Format("The type {0} already has a drop handler", type));
}
drag_drop_type_handlers[type] = handler;
}
public bool OnDrop(DragEventArgs e, Point mouse_current_virtual)
{
foreach (Type type in drag_drop_type_handlers.Keys)
{
if (e.Data.GetDataPresent(type))
{
object dropped_object = e.Data.GetData(type);
DragDropTypeHandler drag_drop_type_handler = drag_drop_type_handlers[type];
drag_drop_type_handler(dropped_object, mouse_current_virtual);
return(true);
}
}
// If we get here, we don't know how to handle this drop item
return(false);
}