code: public int moveSourceToDest(boolean bDisplayOption, int iMoveMode)
      {
          if (m_objValue instanceof String)
              return m_fldDest.setString((String)m_objValue, bDisplayOption, iMoveMode);
          else
              return m_fldDest.setData(m_objValue, bDisplayOption, iMoveMode);
      }
docs: Do the physical move operation.
  @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).