partial void DeleteIngredientPurchaseHistory(IngredientPurchaseHistory instance);
 partial void InsertIngredientPurchaseHistory(IngredientPurchaseHistory instance);
 partial void UpdateIngredientPurchaseHistory(IngredientPurchaseHistory instance);
		private void detach_IngredientPurchaseHistories(IngredientPurchaseHistory entity)
		{
			this.SendPropertyChanging();
			entity.IngredientPurchase = null;
		}