private void detach_Diplom(Diplom entity)
		{
			this.SendPropertyChanging();
			entity.Zach = null;
		}
		private void attach_Diplom(Diplom entity)
		{
			this.SendPropertyChanging();
			entity.Zach = this;
		}
 partial void UpdateDiplom(Diplom instance);
 partial void DeleteDiplom(Diplom instance);
 partial void InsertDiplom(Diplom instance);