REPORT z_demo_2_alv_list.
*---------------------------------------------------------------------*
* This program is an example with 2 ALV Grid lists                    *
* The Sales Orders are displayed in the first list                    *
* When a line is selected, the items of the order are displayed in    *
* the second list                                                     *
*---------------------------------------------------------------------*
* Author : Michel PIOUD                                               *
* Email : mpioud@yahoo.fr  HomePage : http://www.geocities.com/mpioud *
*---------------------------------------------------------------------*
* Macro definition
DEFINE m_fieldcat.
  add 1 to ls_fieldcat-col_pos.
  ls_fieldcat-fieldname   = &1.
  ls_fieldcat-ref_tabname = &2.
  ls_fieldcat-cfieldname  = &3.
  ls_fieldcat-qfieldname  = &4.
  append ls_fieldcat to lt_fieldcat.
END-OF-DEFINITION.
*---------------------------------------------------------------------*
TYPE-POOLS: slis.                      " ALV Global types

*---------------------------------------------------------------------*
TYPES:
  BEGIN OF ty_vbak,
    vkorg TYPE vbak-vkorg,             " Sales organization
    kunnr TYPE vbak-kunnr,             " Sold-to party
    vbeln TYPE vbak-vbeln,             " Sales document
    netwr TYPE vbak-netwr,             " Net Value of the Sales Order
    waerk TYPE vbak-waerk,             " Currency
  END OF ty_vbak,

  BEGIN OF ty_vbap,
    vbeln  TYPE vbap-vbeln,            " Sales document
    posnr  TYPE vbap-posnr,            " Sales document item
    matnr  TYPE vbap-matnr,            " Material number
    arktx  TYPE vbap-arktx,            " Short text for sales order item
    kwmeng TYPE vbap-kwmeng,           " Order quantity
    vrkme  TYPE vbap-vrkme,            " Quantity Unit
    netwr  TYPE vbap-netwr,            " Net value of the order item
    waerk  TYPE vbap-waerk,            " Currency
  END OF ty_vbap.

*---------------------------------------------------------------------*
DATA :
  gs_vbak TYPE ty_vbak,
* Data displayed in the first list
  gt_vbak TYPE TABLE OF ty_vbak,
* Data displayed in the second list
  gt_vbap TYPE TABLE OF ty_vbap.

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

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

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

  v_1 = 'Maximum of records to read'.

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

  PERFORM f_read_data_vbak.

  PERFORM f_display_data_vbak.

*---------------------------------------------------------------------*
*      Form  f_read_data_vbak
*---------------------------------------------------------------------*
FORM f_read_data_vbak.

  SELECT vkorg kunnr vbeln netwr waerk
    INTO CORRESPONDING FIELDS OF TABLE gt_vbak
      UP TO p_max ROWS
    FROM vbak
   WHERE kunnr IN s_kunnr
     AND vbeln IN s_vbeln
     AND vkorg IN s_vkorg
     and vbtyp = 'C'.                  " C = Sales Orders.

ENDFORM.                               " F_READ_DATA_VBAK
*---------------------------------------------------------------------*
*      Form  f_display_data_vbak
*---------------------------------------------------------------------*
FORM f_display_data_vbak.

  DATA:
    ls_fieldcat TYPE slis_fieldcat_alv,
    lt_fieldcat TYPE slis_t_fieldcat_alv.

* Build the field catalog
  m_fieldcat 'VKORG' 'VBAK' '' ''.
  m_fieldcat 'KUNNR' 'VBAK' '' ''.
  m_fieldcat 'VBELN' 'VBAK' ''  ''.
  m_fieldcat 'NETWR' 'VBAK' 'WAERK' ''.
  m_fieldcat 'WAERK' 'VBAK' ''  ''.

* Display the first list
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      i_callback_program      = sy-cprog
      i_callback_user_command = 'USER_COMMAND'
      it_fieldcat             = lt_fieldcat
    TABLES
      t_outtab                = gt_vbak.

ENDFORM.                               " F_DISPLAY_DATA_VBAK
*---------------------------------------------------------------------*
*       FORM USER_COMMAND                                             *
*---------------------------------------------------------------------*
FORM user_command USING u_ucomm     TYPE syucomm
                        us_selfield TYPE slis_selfield.     "#EC CALLED

  CASE u_ucomm.
    WHEN '&IC1'.
      READ TABLE gt_vbak INDEX us_selfield-tabindex INTO gs_vbak.
      CHECK sy-subrc EQ 0.
      PERFORM f_read_data_vbap.        " Read data from VBAP
      PERFORM f_display_data_vbap.
  ENDCASE.

ENDFORM.                               " USER_COMMAND
*---------------------------------------------------------------------*
*      Form  f_read_data_vbap
*---------------------------------------------------------------------*
FORM f_read_data_vbap.

  SELECT vbeln posnr matnr arktx kwmeng vrkme netwr waerk
    INTO CORRESPONDING FIELDS OF TABLE gt_vbap
    FROM vbap
   WHERE vbeln = gs_vbak-vbeln.

ENDFORM.                               " F_READ_DATA_VBAP
*---------------------------------------------------------------------*
*      Form  f_display_data_vbap
*---------------------------------------------------------------------*
FORM f_display_data_vbap.

  DATA:
    ls_fieldcat TYPE slis_fieldcat_alv,
    lt_fieldcat TYPE slis_t_fieldcat_alv.

* Build the field catalog
  m_fieldcat 'VBELN'  'VBAP' '' ''.
  m_fieldcat 'POSNR'  'VBAP' '' ''.
  m_fieldcat 'MATNR'  'VBAP' '' ''.
  m_fieldcat 'ARKTX'  'VBAP' '' ''.
  m_fieldcat 'KWMENG' 'VBAP' '' 'VRKME'.
  m_fieldcat 'VRKME'  'VBAP' '' ''.
  m_fieldcat 'NETWR'  'VBAP' 'WAERK' ''.
  m_fieldcat 'WAERK'  'VBAP' '' ''.

* Display the second list
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      it_fieldcat = lt_fieldcat
    TABLES
      t_outtab    = gt_vbap.

ENDFORM.                               " F_DISPLAY_DATA_VBAP
***************** END OF PROGRAM Z_DEMO_2_ALV_LIST ******************