REPORT z_alv_grid_and_popup.
*---------------------------------------------------------------------*
* This program is an example with a Grid list and a Popup list        *
* The Sales Orders are displayed in the first list                    *
* When a line is selected, the items of the order are displayed in    *
* a popup list                                                        *
*---------------------------------------------------------------------*
* Author : Michel PIOUD - Updated 19-Nov-07                           *
* HomePage : http://www.oocities.org/mpioud                          *
*---------------------------------------------------------------------*
* Macro definition
DEFINE m_fieldcat.
  add 1 to ls_fieldcat-col_pos.
  ls_fieldcat-fieldname   = &1.
  ls_fieldcat-ref_tabname = &2.
  append ls_fieldcat to lt_fieldcat.
END-OF-DEFINITION.
*---------------------------------------------------------------------*
CONSTANTS :
  c_x VALUE 'X'.
*---------------------------------------------------------------------*
TYPE-POOLS: slis.                      " ALV Global types

TYPES:
* Data displayed in the first list
  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
  END OF ty_vbak,

* Data displayed in the popup list
  BEGIN OF ty_vbap,
    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
    netwr  TYPE vbap-netwr,            " Net value of the order item
  END OF ty_vbap.

*---------------------------------------------------------------------*
DATA :
  g_vkorg TYPE vbak-vkorg,
  g_kunnr TYPE vbak-kunnr,
  g_vbeln TYPE vbak-vbeln,
  gt_vbak TYPE TABLE OF ty_vbak,
  gt_vbap TYPE TABLE OF ty_vbap.

*---------------------------------------------------------------------*
SELECT-OPTIONS :
  s_vkorg FOR g_vkorg,                 " Sales organization
  s_kunnr FOR g_kunnr,                 " Sold-to party
  s_vbeln FOR g_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
    INTO 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_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'.

* 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 sy-ucomm
                        us_selfield TYPE slis_selfield.     "#EC CALLED

  DATA:
    ls_vbak TYPE ty_vbak.

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

ENDFORM.                               " USER_COMMAND
*---------------------------------------------------------------------*
*      Form  f_read_data_vbap
*---------------------------------------------------------------------*
FORM f_read_data_vbap USING u_vbeln TYPE vbeln_va.

  SELECT posnr matnr arktx kwmeng netwr
    INTO TABLE gt_vbap
    FROM vbap
   WHERE vbeln = u_vbeln.

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

  DATA:
    ls_private  TYPE slis_data_caller_exit,
    ls_fieldcat TYPE slis_fieldcat_alv,
    lt_fieldcat TYPE slis_t_fieldcat_alv.

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

  ls_private-columnopt = c_x.          " Optimize width

* Display items in a POPUP
  CALL FUNCTION 'REUSE_ALV_POPUP_TO_SELECT'
    EXPORTING
      i_selection = ' '
      i_tabname   = 'GT_VBAP'
      it_fieldcat = lt_fieldcat
      is_private  = ls_private
    TABLES
      t_outtab    = gt_vbap.

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