public ActionResult UpdateThongTinCaNhan(FormCollection f, HttpPostedFileBase file)
        {
            string fileName;

            if (file != null)
            {
                fileName  = Path.GetFileNameWithoutExtension(file.FileName);
                fileName += Path.GetExtension(file.FileName);
                string folderPath = Server.MapPath("~") + @"Assets/avatar";

                if (!Directory.Exists(folderPath))
                {
                    Directory.CreateDirectory(folderPath);
                }

                string path = Path.Combine(folderPath, fileName);

                file.SaveAs(path);
            }
            else
            {
                fileName = "";
            }


            NguoiDungDAO nd = new NguoiDungDAO();

            int id     = Convert.ToInt32(f["id"]);
            var detail = nd.Detail(id);

            detail.DiaChi       = f["diachi"];
            detail.TaiKhoan     = f["taikhoan"];
            detail.TenNguoiDung = f["ten"];
            detail.Email        = f["email"];
            detail.AnhDaiDien   = fileName;
            Session["taikhoan"] = detail;
            nd.UpdateThongTinCaNhan(detail);
            return(RedirectToAction("ThongTinCaNhan", "NguoiDung"));
        }
        public ActionResult Update(int id)
        {
            var up = dao.Detail(id);

            return(View(up));
        }