public IActionResult AddSection(Section section)
        {
            if (!ModelState.IsValid)
            {
                ViewBag.Department = _services.GetDepartment(section.DepartmentId);
                return(View(section));
            }
            if (section == null)
            {
                return(BadRequest());
            }

            _services.CreateSection(section);
            _services.Save();
            return(RedirectToAction("DepartmentList"));
        }