protected void Submit_Click(object sender, EventArgs e)
        {
            dtoKhachHang = new KhachHang();
            bllKhachHang = new KhachHangBLL();
            dtoKhachHang.HoTen = HoTen.Text;
            dtoKhachHang.NgaySinh = NgaySinh.Text;
            dtoKhachHang.GioiTinh = GioiTinh.Text;
            dtoKhachHang.CMND = CMND.Text;
            dtoKhachHang.DiaChi = DiaChi.Text;
            dtoKhachHang.DT = DT.Text;
            dtoKhachHang.Email = Email.Text;
            dtoKhachHang.PassWord = PassWord.Text;
            try
            {
                object oKH = bllKhachHang.insertKhachHang(dtoKhachHang);
                if (oKH != null)
                {
                    HoTen.Text = oKH.ToString();
                }

            }
            catch (Exception)
            {
                throw;
            }
            //try
            //{
            //    object oKH;
            //    oKH = bllKhachHang.selectKhachHang("hhhhhh");
            //    HoTen.Text = oKH.ToString();
                //Session["HoTen"] = dtoKhachHang.HoTen;
                //Session["MaKH"] = oKH.ToString();
                //HttpCookie cookie = new HttpCookie("Email", dtoKhachHang.Email);
                //cookie.Expires = DateTime.Now.AddDays(1D);
                //Response.Cookies.Add(cookie);
                //Response.Write(act);
                //if (act == "loginshop")
                //{
                //    Response.Redirect("Cart.aspx");
                //}
                //else
                //{
                //    Response.Redirect("Default.aspx");
                //}
            //}
            //catch (Exception)
            //{

            //    throw;
            //}
        }
        protected void btnSubmit_Click(object sender, EventArgs e)
        {
            dtoKhachHang = new KhachHang();
            bllKhachHang = new KhachHangBLL();
            SqlDataReader reader;
            dtoKhachHang.Email = Email.Text;
            dtoKhachHang.PassWord = PassWord.Text;

            try
            {
                reader = bllKhachHang.checkKhachHang(Email.Text);
                if (reader.Read())
                {
                    if ((string)reader["PassWord"] == PassWord.Text)
                    {
                        if ((int)reader["IsAdmin"] == 1)
                        {
                            Response.Redirect("Admin/Default.aspx");
                        }
                        else
                        {
                            Response.Redirect("Default.aspx");
                        }
                    }
                    else
                    {
                        error.Text = "Mật khẩu không đúng!";
                    }

                }
                else
                {
                    error.Text = "Email không tồn tại!";
                }
            }
            catch (Exception)
            {
                throw;
            }
        }