public ProductCard GetReturnProductCardInfo(string qcReturnNo, string serialNo, string userid, out string resultMsg) //, out string resultMsg { resultMsg = string.Empty; ProductCard pdCard = null; try { using (QCReturnBLL qcREturnBll = new QCReturnBLL()) { pdCard = qcREturnBll.GetProductCardInfo(qcReturnNo, serialNo, userid, out resultMsg); } } catch (Exception ex) { pdCard = null; throw ex; } return(pdCard); }