partial void DeleteTDYVorcher(TDYVorcher instance);
 partial void InsertTDYVorcher(TDYVorcher instance);
 partial void UpdateTDYVorcher(TDYVorcher instance);
		private void detach_TDYVorchers(TDYVorcher entity)
		{
			this.SendPropertyChanging();
			entity.TDYOrder = null;
		}