code: public void addListeners()
      {
          super.addListeners();
          this.addMainKeyBehavior();
          this.getMainRecord().getField(UserInfo.USER_GROUP_ID).addListener(new InitFieldHandler(this.getRecord(UserControl.USER_CONTROL_FILE).getField(UserControl.ANON_USER_GROUP_ID)));
          ((UserInfo)this.getMainRecord()).addPropertyListeners();
      }
docs: Add all the screen listeners.