public ActionResult Create(LoaiTaiKhoan loaitaikhoan)
        {
            if (ModelState.IsValid)
            {
                db.LoaiTaiKhoans.Add(loaitaikhoan);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(loaitaikhoan);
        }
 public ActionResult Edit(LoaiTaiKhoan loaitaikhoan)
 {
     if (ModelState.IsValid)
     {
         db.Entry(loaitaikhoan).State = EntityState.Modified;
         db.SaveChanges();
         return RedirectToAction("Index");
     }
     return View(loaitaikhoan);
 }