partial void DeleteMovie_Actor(Movie_Actor instance);
 partial void UpdateMovie_Actor(Movie_Actor instance);
		private void detach_Movie_Actors(Movie_Actor entity)
		{
			this.SendPropertyChanging();
			entity.Actor = null;
		}
 partial void InsertMovie_Actor(Movie_Actor instance);
		private void attach_Movie_Actors(Movie_Actor entity)
		{
			this.SendPropertyChanging();
			entity.Actor = this;
		}