public async Task <IActionResult> Edit(int id, SchoolingCreateViewModel vm)
        {
            if (id != vm.Schooling.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                _bll.Schooling.Update(vm.Schooling);
                await _bll.SaveChangesAsync();

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



            vm.MaterialSelectList = new SelectList(await _bll.Material.AllAsync(), nameof(Material.Id),
                                                   nameof(Material.MaterialName), vm.Schooling.MaterialId);
            vm.LocationSelectList = new SelectList(await _bll.Location.AllAsync(), nameof(BLL.App.DTO.Location.Id),
                                                   nameof(BLL.App.DTO.Location.Locations), vm.Schooling.LocationId);


            return(View(vm));
        }
        // GET: Schoolings/Create
        public async Task <IActionResult> Create()
        {
            var vm = new SchoolingCreateViewModel()
            {
                MaterialSelectList = new SelectList(await _bll.Material.AllAsync(), nameof(BLL.App.DTO.Material.Id), nameof(BLL.App.DTO.Material.MaterialName)),
                LocationSelectList = new SelectList(await _bll.Location.AllAsync(), nameof(BLL.App.DTO.Location.Id), nameof(BLL.App.DTO.Location.Locations))
            };

            return(View(vm));
        }
        // GET: Schoolings/Edit/5
        public async Task <IActionResult> Edit(int?id)
        {
            if (id == null)
            {
                return(NotFound());
            }

            var schooling = await _bll.Schooling.FindAsync(id.Value);

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

            var vm = new SchoolingCreateViewModel()
            {
                Schooling          = schooling,
                MaterialSelectList = new SelectList(await _bll.Material.AllAsync(), nameof(Material.Id), nameof(Material.MaterialName), schooling.MaterialId),
                LocationSelectList = new SelectList(await _bll.Location.AllAsync(), nameof(BLL.App.DTO.Location.Id), nameof(BLL.App.DTO.Location.Locations), schooling.LocationId)
            };

            return(View(vm));
        }