alv grid update problem

[Former Member]

hi,

i have a method named get_changed_data. it is called when i press enter after i've changed data on alv grid. in method get_changed_data i'm calling a method of cl_gui_alv_grid named check_changed_data for getting updated data. but it goes endless loop ( i guess inside check_changed_data my method get_changed_data is called ). is there an alternative method to get updated data on alv grid

[I355602]

Hi,

Refer code:-

  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
   EXPORTING
     i_callback_program                = v_rep_id       " report id
     i_callback_pf_status_set          = 'PF'           " for PF-STATUS
     i_callback_user_command           = 'USER_COMMAND' " for User-Command
     is_layout                         = wa_layout      " for layout
     it_fieldcat                       = it_field       " field catalog
     it_sort                           = it_sort        " sort info
    TABLES
      t_outtab                          = it_final      " internal table
   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.

*&---------------------------------------------------------------------*
*&      Form  pf
*&---------------------------------------------------------------------*
*       SUB-ROUTINE PF IS USED TO SET THE PF-STATUS OF THE SCREEN
*       ON WHICH THE ALV GRID IS DISPLAYED
*----------------------------------------------------------------------*
*       -->RT_EXTAB
*----------------------------------------------------------------------*
FORM pf USING rt_extab TYPE slis_t_extab.
  SET PF-STATUS 'ZTG_STAT'.
ENDFORM.                    "pf

*&---------------------------------------------------------------------*
*&      Form  USER_COMMAND
*&---------------------------------------------------------------------*
*       SUB-ROUTINE USER_COMMAND IS USED TO HANDLE THE USER ACTION
*       AND EXECUTE THE APPROPIATE CODE
*----------------------------------------------------------------------*
*      -->LV_OKCODE   used to capture the function code
*                     of the user-defined push-buttons
*      -->L_SELFIELD   text
*----------------------------------------------------------------------*
FORM user_command USING lv_okcode LIKE sy-ucomm l_selfield TYPE slis_selfield.

* assign the function code to variable v_okcode
  lv_okcode = sy-ucomm.

* handle the code execution based on the function code encountered
  CASE lv_okcode.

* when the function code is SAVE then process the selected records
    WHEN 'SAVE'.

* to reflect the data changed into internal table
      DATA : ref_grid TYPE REF TO cl_gui_alv_grid. "new

      IF ref_grid IS INITIAL.
        CALL FUNCTION 'GET_GLOBALS_FROM_SLVC_FULLSCR'
          IMPORTING
            e_grid = ref_grid.
      ENDIF.

      IF NOT ref_grid IS INITIAL.
        CALL METHOD ref_grid->check_changed_data.
      ENDIF.

* refresh the ALV Grid output from internal table
      l_selfield-refresh = 'X'.

  ENDCASE.

ENDFORM.                    "USER_COMMAND

Refer this wiki code to reflect data changes from alv grid to internal table:-

https://www.sdn.sap.com/irj/scn/wiki?path=/display/snippets/alv%252bgrid%252bdisplay%252bwith%252bch...

Hope this helps you.

Regards,

Tarun

Edited by: Tarun Gambhir on Mar 12, 2009 3:57 PM

[uwe_schieferstein]

Hello Deniz

All you need is to call method go_grid->check_changed_data( ) at PAI of your screen. If you do not need any validations then you do NOT need any method to handle event DATA_CHANGED.

For more details please refer to thread

In addition, you may have a look at my remarks about class CL_GUI_CFW in the blog

[A Christmas Collection of Useful Classes|https://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/12377] [original link is broken] [original link is broken] [original link is broken];

Regards

Uwe