protected override ResultStatus Export()
        {
            if (!StartExport())
            {
                return(ResultStatus.Fail);
            }
            string lsFile = PbFunc.wf_copy_file(_ProgramID, "30520");

            try {
                MessageDisplay message = new MessageDisplay();
                b30520 = new B30520(lsFile, emMonth.Text);
                ShowMsg("30521-國內期貨交易概況表 轉檔中...");
                message.OutputShowMessage = b30520.Wf30521();

                if (string.IsNullOrEmpty(message.OutputShowMessage))
                {
                    if (File.Exists(lsFile))
                    {
                        File.Delete(lsFile);
                    }
                    return(ResultStatus.Fail);
                }
            }
            catch (Exception ex) {
                if (File.Exists(lsFile))
                {
                    File.Delete(lsFile);
                }
                WriteLog(ex);
                return(ResultStatus.Fail);
            }
            finally {
                EndExport();
            }
            return(ResultStatus.Success);
        }
 public void Setup()
 {
     b30520 = new B30520(destinationFilePath, "2018/08");
 }