public static void SaveParameter(Excel_parameterViewModel e_paraVM)
        {
            string parameterXmlStr = e_paraVM.paraXml();

            XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.LoadXml(parameterXmlStr);

            string itemCode   = e_paraVM.ItemCode_;
            string refDateStr = e_paraVM.ReferenceDate_.ToString("yyyyMMdd");

            bool exists = System.IO.Directory.Exists(path_ + refDateStr);

            if (!exists)
            {
                System.IO.Directory.CreateDirectory(path_ + refDateStr);
            }


            try
            {
                xmlDoc.Save(path_ + refDateStr + "\\" + itemCode + "_" + refDateStr + ".xml");
            }
            catch (Exception)
            {
                OutputLogViewModel.addResult("parameter Xml save fail!");
            }
        }
        public static void SaveParameter(Excel_parameterViewModel e_paraVM)
        {
            string parameterXmlStr = e_paraVM.paraXml();

            XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.LoadXml(parameterXmlStr);

            string itemCode = e_paraVM.ItemCode_;
            string refDateStr = e_paraVM.ReferenceDate_.ToString("yyyyMMdd");

            bool exists = System.IO.Directory.Exists(path_ + refDateStr);

            if (!exists)
            {
                System.IO.Directory.CreateDirectory(path_ + refDateStr);
            }


            try
            {
                xmlDoc.Save(path_ + refDateStr + "\\" + itemCode + "_" + refDateStr + ".xml");
            }
            catch (Exception )
            {
                OutputLogViewModel.addResult("parameter Xml save fail!");
            }

        }