private void detach_TrainingHistories2(TrainingHistory entity)
		{
			this.SendPropertyChanging();
			entity.DbidsOperator2 = null;
		}
		private void attach_TrainingHistories1(TrainingHistory entity)
		{
			this.SendPropertyChanging();
			entity.DbidsOperator1 = this;
		}
 partial void UpdateTrainingHistory(TrainingHistory instance);
 partial void DeleteTrainingHistory(TrainingHistory instance);
 partial void InsertTrainingHistory(TrainingHistory instance);