protected void LoadKhaosat() { BUSCauHoiKhaoSat BUSCauHoiKhaoSat = new BUSCauHoiKhaoSat(); CAUHOIKHAOSAT CAUHOIKHAOSAT = new CAUHOIKHAOSAT(); CAUHOIKHAOSAT = BUSCauHoiKhaoSat.layCauHoiKhongKhoa(); MaCauHoi = CAUHOIKHAOSAT.MaCauHoiKhaoSat; if (CAUHOIKHAOSAT != null) { lbCauHoi.Text = CAUHOIKHAOSAT.NoiDung; BUSDapAnKhaoSat BUSDapAnKhaoSat = new BUSDapAnKhaoSat(); List<DAPANKHAOSAT> listDA = new List<DAPANKHAOSAT>(); listDA = BUSDapAnKhaoSat.layDapAnTheoMaCauHoi(CAUHOIKHAOSAT.MaCauHoiKhaoSat); rblistDanhSachDapAn.DataSource = listDA; rblistDanhSachDapAn.DataTextField = "NoiDung"; rblistDanhSachDapAn.DataValueField = "MaDapAn"; rblistDanhSachDapAn.DataBind(); } else { rblistDanhSachDapAn.Visible = true; btSubmit.Visible = true; } // rblistDanhSachDapAn.Items[0].Selected = true; }