public async Task <IHttpActionResult> Put([FromODataUri] int SystemParameterID, SystemParameter item)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }
            if (SystemParameterID == item.SystemParameterID)
            {
                return(BadRequest());
            }

            item.ObjectState = ObjectState.Modified;
            _service.Update(item);

            try
            {
                await _unitOfWorkAsync.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!ItemExists(SystemParameterID))
                {
                    return(NotFound());
                }
                throw;
            }

            return(Updated(item));
        }
        public IActionResult Edit(SystemParameterViewModel systemParameterViewModel)
        {
            if (!ModelState.IsValid)
            {
                return(View(systemParameterViewModel));
            }

            var systemParameter = new SystemParameter
            {
                ParameterId    = systemParameterViewModel.ParameterId,
                ParameterName  = systemParameterViewModel.ParameterName,
                ParameterValue = systemParameterViewModel.ParameterValue,
                Description    = systemParameterViewModel.Description,
                IsReadOnly     = systemParameterViewModel.IsReadOnly
            };

            // TODO: Hata yönetimi
            _systemParameterService.Update(systemParameter);

            return(RedirectToAction("Index", "SystemParameters"));
        }