public ActionResult Guncelle(TBLDersler a)
        {
            var dersguncel = dr.TBLDersler.Find(a.DERSID);

            dersguncel.DERSAD = a.DERSAD;
            dr.SaveChanges();
            return(RedirectToAction("Index", "Default"));
        }
 public ActionResult YeniDers(TBLDersler drsek)
 {
     dr.TBLDersler.Add(drsek);
     dr.SaveChanges();
     return(RedirectToAction("Index"));
 }