public async Task <IActionResult> Create([Bind("Id,TieuDe,NoiDungCauHoi,HoTenNguoiHoi,GioiTinh,FkNamSinh,NoiDungTraLoi,NgayGuiCauHoi,NgayTraLoi,NguoiTraLoi,IsShow,FkChuyenKhoa,FkUserTraLoi,DaTraLoi,Email,DiaChi,SoDienThoai")] HoiDapYkhoa hoiDapYkhoa)
        {
            if (ModelState.IsValid)
            {
                var listNamSinh = await GetListNamSinhAsync();

                ViewBag.ListNamSinh = listNamSinh;
                var listChuyenKhoa = await GetListChuyenKhoaAsync();

                ViewBag.ListChuyenKhoa = listChuyenKhoa;

                _context.Add(hoiDapYkhoa);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            ViewData["FkChuyenKhoa"] = new SelectList(_context.LoaiCauHoi, "Id", "Id", hoiDapYkhoa.FkChuyenKhoa);
            ViewData["FkNamSinh"]    = new SelectList(_context.NamSinh, "Id", "Id", hoiDapYkhoa.FkNamSinh);
            ViewData["FkUserTraLoi"] = new SelectList(_context.User, "UserName", "UserName", hoiDapYkhoa.FkUserTraLoi);
            return(View(hoiDapYkhoa));
        }
        public async Task <IActionResult> Edit(int id, [Bind("Id,TieuDe,NoiDungCauHoi,HoTenNguoiHoi,GioiTinh,FkNamSinh,NoiDungTraLoi,NgayGuiCauHoi,NgayTraLoi,NguoiTraLoi,IsShow,FkChuyenKhoa,FkUserTraLoi,DaTraLoi,Email,DiaChi,SoDienThoai")] HoiDapYkhoa hoiDapYkhoa)
        {
            if (id != hoiDapYkhoa.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    var listNamSinh = await GetListNamSinhAsync();

                    ViewBag.ListNamSinh = listNamSinh;
                    var listChuyenKhoa = await GetListChuyenKhoaAsync();

                    ViewBag.ListChuyenKhoa = listChuyenKhoa;

                    _context.Update(hoiDapYkhoa);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!HoiDapYkhoaExists(hoiDapYkhoa.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            ViewData["FkChuyenKhoa"] = new SelectList(_context.LoaiCauHoi, "Id", "Id", hoiDapYkhoa.FkChuyenKhoa);
            ViewData["FkNamSinh"]    = new SelectList(_context.NamSinh, "Id", "Id", hoiDapYkhoa.FkNamSinh);
            ViewData["FkUserTraLoi"] = new SelectList(_context.User, "UserName", "UserName", hoiDapYkhoa.FkUserTraLoi);
            return(View(hoiDapYkhoa));
        }