WebService.Service1 ws = new WebService.Service1();
byte[] buffer = new byte[0];
  if (fupFaxFilePath.FileName == "")
    {

    txtResult.Text="传真文件不能为空";
    return;
    }
  else
    {
      FileStream fs = new FileStream(fupFaxFilePath.PostedFile.FileName, FileMode.Open);
      //Client Side Path
      buffer = new byte[fs.Length];
      fs.Read(buffer, 0, buffer.Length);
      fs.Close();

    }

string filename = fupFaxFilePath.PostedFile.FileName;

WebService.Service1 ws = new WebService.Service1();

  try
  {

      this.txtResult.Text = ws.SendFax(txtUID.Text, txt_PWD.Text,txtFaxNO.Text,       txtMen.Text,txtTitle.Text, buffer, filename);

  }
      catch
  {
  }
      finally
  {
      // fs.Close();
  }