public ActionResult SuaBrand(Brand p, string name) { if (ModelState.IsValid) { QuanLy ql = new QuanLy(); ql.UpdateBrand(p.ID, name); __db.Entry(p).State = EntityState.Modified; __db.SaveChanges(); ViewBag.IDBrand = new SelectList(__db.Brands, "ID", "Name", p.ID); return(RedirectToAction("Brand")); } return(View(p)); }