Troditional ALV layout save

DATA:
  is_variant  LIKE disvariant.

对应组合参数:
      i_save                            = 'A'               "A : default + based on user
      is_variant                        = is_variant

*&---------------------------------------------------------------------*
*&      Form  DISPLAY_ALV
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM display_alv .
  is_variant-report = sy-repid.
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      is_layout                         = is_layout
      it_fieldcat                       = it_fieldcat
      i_grid_title                      = 'Title'
      i_save                            = 'A'
      is_variant                        = is_variant
    TABLES
      t_outtab                          = it_output
    EXCEPTIONS
      program_error                     = 1
      OTHERS                            = 2
            .
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
          WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.

ENDFORM.                    " DISPLAY_ALV