public ActionResult Register(KHACHHANG user)
 {
     if (ModelState.IsValid)
     {
         using (QLBANSACHEntities db = new QLBANSACHEntities())
         {
             db.KHACHHANGs.Add(user);
             db.SaveChanges();
         }
         ModelState.Clear();
         ViewBag.Message = "Succesfully Registered!!";
     }
     return(View());
 }
 public ActionResult LoginAdmin(Admin user)
 {
     using (QLBANSACHEntities db = new QLBANSACHEntities())
     {
         var admins = db.Admins.Where(x => x.UserName == user.UserName && x.Password == user.Password).SingleOrDefault();
         if (admins != null)
         {
             Session["UserName"] = admins.UserName.ToString();
             return(RedirectToAction("Index", "DonDatHang"));
         }
         else
         {
             ModelState.AddModelError("", "User Name or Password is wrong.");
         }
     }
     return(View());
 }
 public ActionResult Login(KHACHHANG user)
 {
     using (QLBANSACHEntities db = new QLBANSACHEntities())
     {
         var userDetails = db.KHACHHANGs.Where(x => x.Taikhoan == user.Taikhoan && x.Matkhau == user.Matkhau).SingleOrDefault();
         if (userDetails != null)
         {
             Session["MaKH"]  = userDetails.MaKH.ToString();
             Session["HoTen"] = userDetails.HoTen.ToString();
             return(RedirectToAction("Index", "BookStore"));
         }
         else
         {
             ModelState.AddModelError("", "User Name or Password is wrong.");
         }
     }
     return(View());
 }