public bool Insert_List_Detail_Invoice(List <InvoiceDetailEntity> list) { if (dbContext == null) { dbContext = new FoodDeliveryEntities(); } bool isInsert = false; for (int i = 0; i < list.Count; i++) { int insert = dbContext.INSERT_INVOICEDETAIL_TOSQL(list[i].FoodID, list[i].NumberFood, list[i].Size, (long)list[i].PriceSize, list[i].Type, (long)list[i].PriceType, list[i].InvoiceID); if (insert > 0) { isInsert = true; } else { return(false); } } return(isInsert); }