protected void btnUpDate_Click(object sender, EventArgs e) { dathangBLL bs = new dathangBLL(); dathangdetailBLL bss = new dathangdetailBLL(); string id = ""; int lengh = 0; bool tf = false; bool tff = false; bool check = false; for (int i = 0; i <= rpDatHang.Items.Count - 1; i++) { CheckBox cbDell = rpDatHang.Items[i].FindControl("cbDell") as CheckBox; if (cbDell.Checked) { id += cbDell.ToolTip + ","; check = true; } } lengh = id.Length; if (check == true) { string hid = id.Remove(lengh - 1); tff = bss.del(hid); tf = bs.del(hid); if (tff == true && tf == true) { Response.Redirect("dathang.aspx?up=t"); } else { lbError.Text = "<div class='error'> " + " <div class='tl'></div><div class='tr'></div>" + "<div class='desc'>" + " <p>Cập nhật thất bại!</p>" + "</div>" + "<div class='bl'></div><div class='br'></div>" + "</div>"; } } }