protected void LoadDanhGia()
        {
            int MaCauHoiDanhGia = 1;
            BUSCauHoiKhaoSat BUSCauHoiKhaoSat = new BUSCauHoiKhaoSat();
            CAUHOIKHAOSAT CAUHOIKHAOSAT = new CAUHOIKHAOSAT();
            CAUHOIKHAOSAT = BUSCauHoiKhaoSat.TimKiem(MaCauHoiDanhGia);

            if (CAUHOIKHAOSAT != null)
            {
                lbCauHoi.Text = CAUHOIKHAOSAT.NoiDung;

                BUSDapAnKhaoSat BUSDapAnKhaoSat = new BUSDapAnKhaoSat();
                List<DAPANKHAOSAT> listDA = new List<DAPANKHAOSAT>();
                listDA = BUSDapAnKhaoSat.layDapAnTheoMaCauHoi(CAUHOIKHAOSAT.MaCauHoiKhaoSat);

                rblDanhSachDapAn.DataSource = listDA;
                rblDanhSachDapAn.DataTextField = "NoiDung";
                rblDanhSachDapAn.DataValueField = "MaDapAn";

                rblDanhSachDapAn.DataBind();
            }
            else
            {
                rblDanhSachDapAn.Visible = true;
                btSubmit.Visible = true;
            }

               // rblistDanhSachDapAn.Items[0].Selected = true;
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            //Thong tin nguoi dung

            if (Request.QueryString["id"] != null)
            {
                //lay ma
                int mahoatdong = int.Parse(Request.QueryString["id"]);

                //lay thong tin va load len cac textbox
                BUSCauHoiKhaoSat BUSCauHoiKhaoSat = new BUSCauHoiKhaoSat();
                CAUHOIKHAOSAT lpDTO = BUSCauHoiKhaoSat.TimKiem(mahoatdong);
                txtmacauhoikhaosat.Text = lpDTO.MaCauHoiKhaoSat .ToString();
                txttieude.Text = lpDTO.NoiDung ;
                txtlock.Text = lpDTO.BiKhoa.ToString()  ;
            }
        }