public ActionResult AddCourse()
 {
     if (Session["UserId"] != null && Session["Accountid"] != null)
     {
         CourseRepo  cour  = new CourseRepo();
         CourseModel model = cour.dropdownrepo();
         return(View(model));
     }
     else
     {
         return(RedirectToAction("Index", "Login"));
     }
 }