//[HttpPost]
        //public ActionResult ViewInformation(int departmentId)
        //{
        //    ViewStatisticsManager aViewStatisticsManager=new ViewStatisticsManager();
        //    List<CourseStatisticsViewModel> aCourseStatisticsViewModels= aViewStatisticsManager.GetAllInformation();

        //    ViewBag.Information = aCourseStatisticsViewModels;
        //    return View();
        //}

        public JsonResult GetAllInformation(int departmentId)
        {
            ViewStatisticsManager            aViewStatisticsManager      = new ViewStatisticsManager();
            List <CourseStatisticsViewModel> aCourseStatisticsViewModels = aViewStatisticsManager.GetAllInformation(departmentId);

            return(Json(aCourseStatisticsViewModels));
        }
        public ActionResult ViewInformation(CourseStatisticsViewModel aCourseStatisticsViewModel)
        {
            ViewStatisticsManager aViewStatisticsManager = new ViewStatisticsManager();

            ViewBag.Departments = aViewStatisticsManager.GetAllDepartments();
            return(View());
        }