public IActionResult Update(int id)
        {
            var            model = _billsService.GetById(id);
            BillUpdateView bill  = new BillUpdateView()
            {
                BillDate     = model.BillDate,
                BillOrderno  = model.BillOrderno,
                BillSeriNo   = model.BillSeriNo,
                Deliverer    = model.Deliverer,
                Hour         = model.Hour,
                Receiver     = model.Receiver,
                VergiDairesi = model.VergiDairesi,
            };

            return(View(bill));
        }
 public IActionResult Update(BillUpdateView model)
 {
     if (ModelState.IsValid)
     {
         var   total = _billsService.GetById(model.Id).Total;
         Bills bills = new Bills()
         {
             Deliverer    = model.Deliverer,
             BillDate     = model.BillDate,
             VergiDairesi = model.VergiDairesi,
             BillOrderno  = model.BillOrderno,
             BillSeriNo   = model.BillSeriNo,
             Id           = model.Id,
             Hour         = model.Hour,
             Receiver     = model.Receiver,
             Total        = total
         };
         _billsService.Update(bills);
         return(RedirectToAction("Index"));
     }
     return(View(model));
 }