private void detach_Duties(Duty entity)
		{
			this.SendPropertyChanging();
			entity.Employee = null;
		}
		private void attach_Duties(Duty entity)
		{
			this.SendPropertyChanging();
			entity.Employee = this;
		}
 partial void UpdateDuty(Duty instance);
 partial void DeleteDuty(Duty instance);
 partial void InsertDuty(Duty instance);