public static string XoaDonHang(int ID) { try { xRPDataContext dts = new xRPDataContext(); var user = (from u in dts.aspnet_Users where u.UserName == HttpContext.Current.User.Identity.Name select u).FirstOrDefault(); var result = dts.Sp_Qldh_DonHang_Deli("DEL1", ID, user.UserId, "", "").FirstOrDefault(); if (result != null && !string.IsNullOrEmpty(result.Column1)) { return(result.Column1); } return(""); } catch (Exception) { return("ERROR"); } }