public HttpResponseBase Import() { string json = string.Empty; try { EdmGroupEmailQuery query = new EdmGroupEmailQuery(); if (!string.IsNullOrEmpty(Request.Params["ImportCsv"])) { query.group_id = Convert.ToUInt32(Request.Params["group_id"]); HttpPostedFileBase file = Request.Files["ImportCsv"]; FileManagement fileManagement = new FileManagement(); string fileName = fileManagement.NewFileName(file.FileName); string newFileName = Server.MapPath(excelPath_export) + fileName; file.SaveAs(newFileName); DataTable _dt = CsvHelper.ReadCsvToDataTable_CN(newFileName, true); _edmGroup = new EdmGroupMgr(mySqlConnectionString); json = _edmGroup.Import(_dt, query); } } catch (Exception ex) { Log4NetCustom.LogMessage logMessage = new Log4NetCustom.LogMessage(); logMessage.Content = string.Format("TargetSite:{0},Source:{1},Message:{2}", ex.TargetSite.Name, ex.Source, ex.Message); logMessage.MethodName = System.Reflection.MethodBase.GetCurrentMethod().Name; log.Error(logMessage); json = "{success:false}"; } this.Response.Clear(); this.Response.Write(json); this.Response.End(); return this.Response; }