Controller Loop not receiving data from JS

Hello Team,

I'm writing this loop where I want it to saves data into sales table and sales item table[that is Sales Detail table], and I want it to perform the following operation such as deducting the quantity sold from the stock table and also calculating profit made on each sales into the profit column and finally print the sales receipt.

if (data.result == true) {
//closeModal();
alert(data.message = "Sales process successfully!...");
}
else {
//closeModal();

}

return false;

}
})
}

public ActionResult SaveSales(SalesModel ObjSalesModel)
{
try
{
//decimal costPrice = ObjSalesModel.CP;
//decimal sellingPrice = ObjSalesModel.SP;
//decimal Profit = SP - CP;

tblSalesItem ObjSalesItem = new tblSalesItem();
ObjSalesItem.StockID = ObjSalesModel.StockID;
ObjSalesItem.SalesID = ObjSalesModel.SalesID;
ObjSalesItem.Qty = ObjSalesModel.Qty;
ObjSalesItem.Rate = ObjSalesModel.Rate;
ObjSalesItem.Amount = ObjSalesModel.Amount;
objASPNETPHARMACYDBEntities.tblSalesItems.Add(ObjSalesItem);
objASPNETPHARMACYDBEntities.SaveChanges();
foreach (var sales in ObjSalesModel.SalesItems)
{
tblSale ObjSales = new tblSale();
//ObjSales.Date = DateTime.Now.ToString("dd-MM-yyyy HH:mm:ss");
ObjSales.Amount = ObjSalesModel.Amount;
ObjSales.Discount = ObjSalesModel.Discount;
ObjSales.Tax = ObjSalesModel.Tax;
ObjSales.GrandTotal = ObjSalesModel.GrandTotal;
ObjSales.Profit = ObjSalesModel.Profit;
ObjSales.UserID = ObjSalesModel.UserID;
objASPNETPHARMACYDBEntities.tblSales.Add(ObjSales);
objASPNETPHARMACYDBEntities.SaveChanges();
ObjSales.SalesID = ObjSalesModel.SalesID;

var ObjtblStock = objASPNETPHARMACYDBEntities.tblStocks.Where(x => x.StockID == sales.StockID).FirstOrDefault();
ObjtblStock.Qty = (ObjtblStock.Qty) - (sales.Qty);
objASPNETPHARMACYDBEntities.Entry(ObjtblStock).State = EntityState.Modified;
objASPNETPHARMACYDBEntities.SaveChanges();
}
return Json(new { result = true, message = "Sales fail to saved!" }, JsonRequestBehavior.AllowGet);
}
catch (Exception)
{
//throw;
return Json(new { result = true, message = "Sales successfully saved!" }, JsonRequestBehavior.AllowGet);
}
}

You may have a problem in the properties of tblSales and SalesItems to be populated with values :

var ObjSalesModel = {
    tblSales: {
        Amount: parseFloat($('#txtTotal').val()),
        Discount: parseFloat($('#discountPercent').val()),
        GrandTotal: parseFloat($('#grandTotal').val()),
    },
    SalesItems: []
};

Verify that #tblAppendHere contains rows with the expected structure and the appropriate td values. The find("td:eq(x)") logic depends on the proper HTML table structure.

StockID	SalesID	Qty	Rate	Amount
1	1001	5	20	100

Your SalesModel in your controller action must match the structure of the ObjSalesModel being sent from JavaScript :

public class SalesModel
{
    public tblSales tblSales { get; set; }
    public List SalesItems { get; set; }
}

Try to update your catch code block :

catch (Exception ex)
{
    return Json(new { result = false, message = ex.Message }, JsonRequestBehavior.AllowGet);
}