CL_GUI_ALV_GRID-GET_SELECTED_ROWS Parameter ET_INDEX_ROWS not filled.

Question

Hi Gurus,
I am using Two containers,
In Screen 0100 When 'DELETE'/'ADD' it will Delete/Insert records to DB Table at First Time.
But If I go forward to the next screen 0101 and then back the the 0100, at that time When I press  'DELETE'/'ADD' the functionality is not working.
In my Pgm flow
When 'DEL'.
CALL METHOD oref_alv_grid->check_changed_data
      IMPORTING
                e_valid = l_valid. - > +Filled +
CALL METHOD oref_alv_grid->get_selected_rows
      IMPORTING
                et_index_rows = lt_rows -> Not Filled, Even I dont have Debugg insite the method
Please give me a solution.
Thanks for your valuable reply.
Kanagaraja L

Answer 1

Hello Kanagaraja
You have made a mistake when calling the REFRESH method.
FORM delete_database_add .
DATA: lt_rows TYPE lvc_t_row,
wa_rows TYPE lvc_s_row.
DATA: lt_rows1 TYPE lvc_t_row.
DATA:t_row_no TYPE LVC_t_ROID.
    * CALL METHOD oref_alv_grid->refresh_table_display
    * EXCEPTIONS
    * finished = 1
    * OTHERS = 2.
" NOTE: Refresh clears all selections. Thus, LT_ROWS1 will always be empty !!!
CALL METHOD oref_alv_grid->get_selected_rows
IMPORTING
et_index_rows = lt_rows1[].
You may have a look at my sample report ZUS_SDN_TWO_ALV_GRIDS_2SCR. Display the first ALV list, select some rows and enter 'DETAIL' in the command window. This will lead you to the second screen from which you return via F3.
Back on the first ALV list enter 'DELETE' and all marked rows will be deleted from the list.
*& Report  ZUS_SDN_TWO_ALV_GRIDS
*& Thread: CL_GUI_ALV_GRID-GET_SELECTED_ROWS Parameter ET_INDEX_ROWS not filled.
*& <a class="jive_macro jive_macro_thread" href="" __jive_macro_name="thread" modifiedtitle="true" __default_attr="826287"></a>
*& Screen '0100' contains no elements.
*& ok_code -> assigned to GD_OKCODE
*& Flow logic:
*  PROCESS BEFORE OUTPUT.
*    MODULE STATUS_0100.
*  PROCESS AFTER INPUT.
*    MODULE USER_COMMAND_0100.
*& Screen '0200': copy of screen '0100' (for the sake of simplicity)
REPORT  zus_sdn_two_alv_grids_2scr.
DATA:
  gd_okcode        TYPE ui_func,
  gd_repid         TYPE syrepid,
  go_docking1      TYPE REF TO cl_gui_docking_container,
  go_docking2      TYPE REF TO cl_gui_docking_container,
  go_grid1         TYPE REF TO cl_gui_alv_grid,
  go_grid2         TYPE REF TO cl_gui_alv_grid,
  gs_layout        TYPE lvc_s_layo.
DATA:
  gt_outtab1       TYPE STANDARD TABLE OF knb1,
  gt_outtab2       TYPE STANDARD TABLE OF knvv.
*       CLASS lcl_eventhandler DEFINITION
CLASS lcl_eventhandler DEFINITION.
  PUBLIC SECTION.
    CLASS-METHODS:
      handle_double_click FOR EVENT double_click OF cl_gui_alv_grid
        IMPORTING
          e_row
          e_column
          es_row_no
          sender.
ENDCLASS.                    "lcl_eventhandler DEFINITION
*       CLASS lcl_eventhandler IMPLEMENTATION
CLASS lcl_eventhandler IMPLEMENTATION.
  METHOD handle_double_click.
*   define local data
    DATA:
      ls_knb1      TYPE knb1.
    CHECK ( sender = go_grid1 ).
**    READ TABLE gt_knb1 INTO ls_knb1 INDEX e_row-index.
**    CHECK ( ls_knb1-kunnr IS NOT INITIAL ).
**    CALL METHOD go_grid1->set_current_cell_via_id
**      EXPORTING
***        IS_ROW_ID    =
***        IS_COLUMN_ID =
**        is_row_no    = es_row_no.
***   Triggers PAI of the dynpro with the specified ok-code
**    CALL METHOD cl_gui_cfw=>set_new_ok_code( 'DETAIL' ).
  ENDMETHOD.                    "handle_double_click
ENDCLASS.                    "lcl_eventhandler IMPLEMENTATION
START-OF-SELECTION.
  SELECT        * FROM  knb1 INTO TABLE gt_outtab1
         WHERE  bukrs  = '1000'.
  PERFORM init_controls.
* Display data
  gs_layout-grid_title = 'Customers'.
  gs_layout-sel_mode   = 'D'.  " multiple row selection
  CALL METHOD go_grid1->set_table_for_first_display
    EXPORTING
      i_structure_name = 'KNB1'
      is_layout        = gs_layout
    CHANGING
      it_outtab        = gt_outtab1
    EXCEPTIONS
      OTHERS           = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
  gs_layout-grid_title = 'Customers Details (Sales Areas)'.
  CALL METHOD go_grid2->set_table_for_first_display
    EXPORTING
      i_structure_name = 'KNVV'
      is_layout        = gs_layout
    CHANGING
      it_outtab        = gt_outtab2  " empty !!!
    EXCEPTIONS
      OTHERS           = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
  gd_repid = syst-repid.
* Link the docking container to the target dynpro
  CALL METHOD go_docking1->link
    EXPORTING
      repid                       = gd_repid
      dynnr                       = '0100'
*      CONTAINER                   =
    EXCEPTIONS
      OTHERS                      = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
* Link the docking container to the target dynpro
  CALL METHOD go_docking2->link
    EXPORTING
      repid                       = gd_repid
      dynnr                       = '0200'
*      CONTAINER                   =
    EXCEPTIONS
      OTHERS                      = 4.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
* NOTE: dynpro does not contain any elements
  CALL SCREEN '0100'.
* Flow logic of dynpro '0100' (does not contain any dynpro elements):
*PROCESS BEFORE OUTPUT.
*  MODULE STATUS_0100.
*PROCESS AFTER INPUT.
*  MODULE USER_COMMAND_0100.
END-OF-SELECTION.
*&      Form  INIT_CONTROLS
*       text
*  -->  p1        text
*  <--  p2        text
FORM init_controls .
* Create docking container
  CREATE OBJECT go_docking1
    EXPORTING
      parent = cl_gui_container=>screen0
      ratio  = 90
    EXCEPTIONS
      OTHERS = 6.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
* Create ALV grids
  CREATE OBJECT go_grid1
    EXPORTING
      i_parent = go_docking1
    EXCEPTIONS
      OTHERS   = 5.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
* Set event handler
  SET HANDLER:
    lcl_eventhandler=>handle_double_click FOR go_grid1.
* Create docking container
  CREATE OBJECT go_docking2
    EXPORTING
      parent = go_docking2
      ratio  = 90
    EXCEPTIONS
      OTHERS = 6.
  IF sy-subrc <> 0.
*   MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*              WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
* Create ALV grids
  CREATE OBJECT go_grid2
    EXPORTING
      i_parent = go_docking2
    EXCEPTIONS
      OTHERS   = 5.
  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.                    " INIT_CONTROLS
*&      Module  STATUS_0100  OUTPUT
*       text
MODULE status_0100 OUTPUT.
  SET PF-STATUS 'STATUS_0100'.  " contains push button "DETAIL"
*  SET TITLEBAR 'xxx'.
* Refresh display of detail ALV list
  CALL METHOD go_grid2->refresh_table_display
*    EXPORTING
*      IS_STABLE      =
*      I_SOFT_REFRESH =
    EXCEPTIONS
      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.
ENDMODULE.                 " STATUS_0100  OUTPUT
*&      Module  USER_COMMAND_0100  INPUT
*       text
MODULE user_command_0100 INPUT.
  TRANSLATE gd_okcode TO UPPER CASE.
  CASE gd_okcode.
    WHEN 'BACK' OR
         'END'  OR
         'CANC'.
      CASE syst-dynnr.
        WHEN '0100'.
          SET SCREEN 0. LEAVE SCREEN.
        WHEN '0200'.
          SET SCREEN '0100'.
          LEAVE SCREEN.
      ENDCASE.
*   User has pushed button "Display Details"
    WHEN 'DETAIL'.
      PERFORM entry_show_details.
      CALL SCREEN '0200'.
      WHEN 'DELETE'.
        perform DELETE_ENTRIES.
    WHEN OTHERS.
  ENDCASE.
  CLEAR: gd_okcode.
ENDMODULE.                 " USER_COMMAND_0100  INPUT
*&      Form  ENTRY_SHOW_DETAILS
*       text
*  -->  p1        text
*  <--  p2        text
FORM entry_show_details .
* define local data
  DATA:
    ls_row      TYPE lvc_s_row,
    lt_rows     type lvc_t_row,
    ls_knb1     TYPE knb1,
    lt_knb1     TYPE STANDARD TABLE OF knb1.
  CALL METHOD go_grid1->get_selected_rows
    IMPORTING
      et_index_rows = lt_rows
*      et_row_no     =
  LOOP AT lt_rows INTO ls_row.
    READ TABLE gt_outtab1 INTO ls_knb1 INDEX ls_row-index.
    APPEND ls_knb1 TO lt_knb1.
  ENDLOOP.
  IF ( lt_rows IS INITIAL ).
    REFRESH: gt_outtab2.
  ELSE.
    SELECT * FROM  knvv INTO TABLE gt_outtab2
        FOR ALL ENTRIES IN lt_knb1
           WHERE  kunnr  = lt_knb1-kunnr.
  ENDIF.
ENDFORM.                    " ENTRY_SHOW_DETAILS
*&      Form  DELETE_ENTRIES
*       text
*  -->  p1        text
*  <--  p2        text
form DELETE_ENTRIES .
* define local data
  DATA:
    ls_row      TYPE lvc_s_row,
    lt_rows     type lvc_t_row.
  CALL METHOD go_grid1->get_selected_rows
    IMPORTING
      et_index_rows = lt_rows
*      et_row_no     =
  LOOP AT lt_rows INTO ls_row.
    delete gt_outtab1 INDEX ls_row-index.
  ENDLOOP.
  go_grid1->refresh_table_display( ).  " Mandatory !!!
endform.                    " DELETE_ENTRIES
Regards
  Uwe