code: public int fieldChanged(boolean bDisplayOption, int iMoveMode)
      {
          if (m_gridScreen != null)
              m_gridScreen.reSelectRecords();
          if (m_sPopupBox != null)
              m_sPopupBox.reSelectRecords();
          return DBConstants.NORMAL_RETURN;
      }
docs: The Field has Changed.
  Reselect the grid screen.
  @param bDisplayOption If true, display the change.
  @param iMoveMode The type of move being done (init/read/screen).
  @return The error code (or NORMAL_RETURN if okay).
  Reselect the records.