REPORT z_demo_alv_sort.
*---------------------------------------------------------------------*
* This program lists orders (VBAK) with sort and sub-total for        *
* 'sold-to-party' (KUNNR) and 'Sales organization' (VKORG)            *
*---------------------------------------------------------------------*

TABLES : vbak.

TYPE-POOLS: slis.                      " ALV Global types

SELECT-OPTIONS :
  s_vkorg FOR vbak-vkorg,              " Sales organization
  s_kunnr FOR vbak-kunnr,              " Sold-to party
  s_vbeln FOR vbak-vbeln.              " Sales document

SELECTION-SCREEN :
  SKIP, BEGIN OF LINE,COMMENT 5(27) v_1 FOR FIELD p_max.
PARAMETERS p_max(2) TYPE n DEFAULT '20' OBLIGATORY.
SELECTION-SCREEN END OF LINE.

DATA:
  BEGIN OF gt_vbak OCCURS 0,
    vkorg LIKE vbak-vkorg,             " Sales organization
    kunnr LIKE vbak-kunnr,             " Sold-to party
    vbeln LIKE vbak-vbeln,             " Sales document
    netwr LIKE vbak-netwr,             " Net Value of the Sales Order
    waerk LIKE vbak-waerk,             " Document currency
  END OF gt_vbak.

*---------------------------------------------------------------------*
INITIALIZATION.

  v_1 = 'Maximum of records to read'.

*---------------------------------------------------------------------*
START-OF-SELECTION.

  PERFORM f_read_data.

  PERFORM f_display_data.

*---------------------------------------------------------------------*
*      Form  f_read_data
*---------------------------------------------------------------------*
FORM f_read_data.

  SELECT * INTO CORRESPONDING FIELDS OF TABLE gt_vbak
           FROM vbak
             UP TO p_max ROWS
          WHERE kunnr IN s_kunnr
            AND vbeln IN s_vbeln
            AND vkorg IN s_vkorg.

ENDFORM.                               " F_READ_DATA
*---------------------------------------------------------------------*
*      Form  f_display_data
*---------------------------------------------------------------------*
FORM f_display_data.

  DEFINE m_fieldcat.
    add 1 to ls_fieldcat-col_pos.
    ls_fieldcat-fieldname   = &1.
    ls_fieldcat-ref_tabname = 'VBAK'.
    ls_fieldcat-do_sum      = &2.
    ls_fieldcat-cfieldname  = &3.
    append ls_fieldcat to lt_fieldcat.
  END-OF-DEFINITION.

  DEFINE m_sort.
    add 1 to ls_sort-spos.
    ls_sort-fieldname = &1.
    ls_sort-up        = 'X'.
    ls_sort-subtot    = &2.
    append ls_sort to lt_sort.
  END-OF-DEFINITION.

  DATA:
    ls_fieldcat TYPE slis_fieldcat_alv,
    lt_fieldcat TYPE slis_t_fieldcat_alv,
    lt_sort     TYPE slis_t_sortinfo_alv,
    ls_sort     TYPE slis_sortinfo_alv,
    ls_layout   TYPE slis_layout_alv.

  m_fieldcat 'VKORG' ''  ''.
  m_fieldcat 'KUNNR' ''  ''.
  m_fieldcat 'VBELN' ''  ''.
  m_fieldcat 'NETWR' 'X' 'WAERK'.
  m_fieldcat 'WAERK' ''  ''.

  m_sort 'VKORG' 'X'.                  " Sort by vkorg and subtotal
  m_sort 'KUNNR' 'X'.                  " Sort by kunnr and subtotal
  m_sort 'VBELN' ''.                   " Sort by vbeln

  ls_layout-cell_merge = 'X'.

  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
       EXPORTING
            is_layout   = ls_layout
            it_fieldcat = lt_fieldcat
            it_sort     = lt_sort
       TABLES
            t_outtab    = gt_vbak.

ENDFORM.                               " F_DISPLAY_DATA
***************** END OF PROGRAM Z_DEMO_ALV_SORT **********************