public async Task <IActionResult> Edit(int id, SectorEditViewModel vm)
        {
            if (ModelState.IsValid)
            {
                _sectorRepository.Update(vm.Sector);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }

            return(View(vm));
        }
        public async Task <IActionResult> Edit(int?id)
        {
            var sectors = await _sectorRepository.GetAllAsync();

            if (id == null)
            {
                return(NotFound());
            }

            var sector = _sectorRepository.Find((int)id);

            if (sector == null)
            {
                return(NotFound());
            }

            var vm = new SectorEditViewModel
            {
                Sector = sector
            };

            return(View(vm));
        }