public ActionResult suaTheloai(Doanquanlythuvien.Models.THELOAI tHELOAI)
 {
     Doanquanlythuvien.Models.THELOAI hELOAI = dc.THELOAIs.Find(tHELOAI.MaTheLoai);
     if (hELOAI != null)
     {
         hELOAI.MaTheLoai  = tHELOAI.MaTheLoai;
         hELOAI.TenTheLoai = tHELOAI.TenTheLoai;
         dc.SaveChanges();
     }
     return(RedirectToAction("IndexTL"));
 }
 public ActionResult xemTheloai(string id)
 {
     Doanquanlythuvien.Models.THELOAI tHELOAI = dc.THELOAIs.Find(id);
     return(View(tHELOAI));
 }