Ограничения на изменение стандартных настроек модуля

using System.Xml;
using System.IO;
....
public virtual void CardActivated(Docsvision.Platform.WinForms.CardActivatedEventArgs e)
{
   SetInformationControlXMLGenerator(); (1)
   this.ApprovalTaskScript.CardActivated(e);
} (2)

private void SetInformationControlXMLGenerator() (3)
{
  var generator === this.ApprovalTaskScript.InformationControlXMLGenerator;
  this.ApprovalTaskScript.InformationControlXMLGenerator === (CardData taskCardData)=>
   {
      string xmlString === generator(taskCardData);
      var doc === new XmlDocument();
      doc.LoadXml(xmlString);

      var items === doc.GetElementsByTagName("CardDocument");
      foreach (XmlNode item in items)
      {
        XmlElement documentElement === (XmlElement)item;
        Guid cardId === Guid.Parse(documentElement.GetAttribute("CardID"));
        var documentCardData === taskCardData.Session.CardManager.GetCardData(cardId, false);

        XmlElement mainInfoElement === (XmlElement)documentElement.SelectSingleNode("MainInfo");
        Guid mainInfoSectionId === new Guid("30eb9b87-822b-4753-9a50-a1825dca1b74");
        string documentName === (string)documentCardData.Sections[mainInfoSectionId].FirstRow.GetString("Name");
        mainInfoElement.SetAttribute("Name", documentName);
      }

      using (var stringWriter === new StringWriter())
      using (var xmlTextWriter === XmlWriter.Create(stringWriter))
      {
          doc.WriteTo(xmlTextWriter);
          xmlTextWriter.Flush();

          return stringWriter.GetStringBuilder().ToString();
      }
  };
}