I save invoice the name of the product does not appear in the report and the database, but the ID number of the product appears

Question

1.00/5 (1 vote)

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<pre>[HttpPost]
        public JsonResult SaveClientOrder(Sale sale, List<SalesDetail> salesDetails)
        {
           
 NeamahBranch.Helper.AppHelper.ReturnMessage retMessage = new AppHelper.ReturnMessage();
            InvoiceBranchs_DBEntities db = new InvoiceBranchs_DBEntities();
            retMessage.IsSuccess = true;

            foreach (var item in salesDetails)
            {
                sale.SalesDetails.Add(new SalesDetail { ProductId = item.ProductId, UnitPrice = item.UnitPrice, Quantity = item.Quantity, LineTotal = item.LineTotal });
            }

            db.Sales.Add(sale);
            retMessage.Messagae = "Save Success!";
            try
            {
                db.SaveChanges();
            }
            catch (Exception)
            {
                retMessage.IsSuccess = false;
            }
            return Json(retMessage, JsonRequestBehavior.AllowGet);

        }

What I have tried:

I have relationship between Product table and Sales Detail table if I add any product in product table appear in Sales Detail table by Id not Name Product

Posted 3-Sep-21 8:53am

Member 15345871

Updated 5-Sep-21 22:42pm

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Richard Deeming · Answer 1 · 2021-09-05T22:42:00

Solution 1

That's how foreign-key database relationships work. The sales detail table should not contain details from the products table; it should only contain the key of the related record in the products table.

In SQL, you join the two tables together to see the related details. In Entity Framework, you use the navigation properties to view the related entity.

SQL

SELECT
    D.ProductId,
    P.Name As ProductName,
    D.UnitPrice,
    D.Quantity,
    D.LineTotal
FROM
    dbo.SalesDetails As D
    INNER JOIN dbo.Products As P
    ON P.Id = D.ProductId
WHERE
    D.SaleId = 1
;

C#

List<SaleDetail> sale = context.SaleDetails
    .Include(d => d.Product)
    .Where(d => d.SaleId == 1)
    .ToList();

Posted 5-Sep-21 22:42pm

Richard Deeming

Comments

Member 15345871 10-Sep-21 17:17pm

First of all thanks for the help, where can I write this code

List<saledetail> sale = context.SaleDetails
.Include(d => d.Product)
.Where(d => d.SaleId == 1)
.ToList();

my Code :-

[HttpPost]
        public JsonResult SaveClientOrder(Sale sale, List<salesdetail> salesDetails)
        {
           
 NeamahBranch.Helper.AppHelper.ReturnMessage retMessage = new AppHelper.ReturnMessage();
            InvoiceBranchs_DBEntities db = new InvoiceBranchs_DBEntities();
            retMessage.IsSuccess = true;

            foreach (var item in salesDetails)
            {
                sale.SalesDetails.Add(new SalesDetail { ProductId = item.ProductId, UnitPrice = item.UnitPrice, Quantity = item.Quantity, LineTotal = item.LineTotal });
            }

            db.Sales.Add(sale);
            retMessage.Messagae = "Save Success!";
            try
            {
                db.SaveChanges();
            }
            catch (Exception)
            {
                retMessage.IsSuccess = false;
            }
            return Json(retMessage, JsonRequestBehavior.AllowGet);

        }

Richard Deeming 13-Sep-21 5:14am

You'd use that code when you want to return the details of a single sale, not when you're saving a sale.