docs: public void addListeners()
      {
          super.addListeners();
          Record record = this.getMainRecord();
          Record recClassInfo = this.getRecord(ClassInfo.CLASS_INFO_FILE);
          if (recClassInfo != null)
          {
              record.setKeyArea(KeyInfo.KEY_FILENAME_KEY);
              SubFileFilter listener = new SubFileFilter(recClassInfo.getField(ClassInfo.CLASS_NAME), KeyInfo.KEY_FILENAME, null, null, null, null, true);
              record.addListener(listener);
              recClassInfo.getField(ClassInfo.CLASS_NAME).addListener(new FieldReSelectHandler(this));
          }
      }