private void detach_Trainers(Trainer entity)
		{
			this.SendPropertyChanging();
			entity.Member = null;
		}
		private void attach_Trainers(Trainer entity)
		{
			this.SendPropertyChanging();
			entity.Member = this;
		}
 partial void UpdateTrainer(Trainer instance);
 partial void DeleteTrainer(Trainer instance);
 partial void InsertTrainer(Trainer instance);