public async Task <IActionResult> Create([Bind("SsubjectId,SsubjectName")] Ssubject ssubject)
        {
            if (ModelState.IsValid)
            {
                await _rep.AddAsyn(ssubject);

                return(RedirectToAction(nameof(Index)));
            }
            return(View(ssubject));
        }
        public async Task <IActionResult> Edit(int id, [Bind("Id,InvoiceNumber,DateCreated,DateOfShipment,ManagerId,Annotation")] Invoice model)
        {
            if (id != model.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    var ModelInvoiceId = model.Id;
                    if (model.Id == 0)
                    {
                        await invoiceRep.AddAsyn(model);
                    }
                    else
                    {
                        await invoiceRep.UpdateAsyn(model, model.Id);
                    }
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!InvoiceExists(model.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Filter)));
            }
            ViewData["ManagerId"] = new SelectList(мanagerRep.GetAll(), "Id", "LastName", model.ManagerId);
            return(View(model));
        }