topic Re: ALV GRID update internal table in Application Development and Automation Discussions

ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:19:58 GMT

Hi all,

I have an internal table display in a ALV GRID. Only one column is editable. When I change the field value, ALV GRID display the change, but when I click on refresh return the old value.

I've checked in DEBUG mode and when I click on refresh (in the PAI module), the internal table haven't data modified.

For example: the field qta have value 15. I change it in 18 and then press Refresh. In debug, the field qta still have the value 15.

What I have to do?

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:22:55 GMT

see the following links

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:22:59 GMT

Hi Christian,

I thought we had answered to the same question in your last post.. did that not help?

In any case, did you implement the suggestion?

Are you calling check_changed_data in your PAI module as suggested and still its not working?

If that is the case can you paste your code from your PAI module? and the necessary ALV Grid code for us to analyse...

Sri

Re: ALV GRID update internal table

RichHeilman — Thu, 01 Dec 2005 14:23:47 GMT

Maybe the sample program BCALV_EDIT_03 will point you in the right direction. THere is also....

BCALV_EDIT_01

BCALV_EDIT_02

BCALV_EDIT_04

Regards,

Rich Heilman

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:27:51 GMT

I follow the example BCALV_EDIT_02.

In this report seems that internal table is automatically update when you change a value. Infact, if you see, when you switch display/change mode, it hold the right values.

The source code of the example call only the alv_grid_first_display method and the set_ready_for_input

method to switch mode.

Why my report don't work? Where is the event of the update of internal table?

When I switch from editing mode to display, ALV GRID display the initial value of the cell.

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:34:11 GMT

Hi,

Ok, then go through example BCALV_GRID_EDIT.

From what I can understand, you have not registered and handled data_changed event.

That appears to be your problem..

Hope this helps..

Sri

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:37:33 GMT

Maybe I understood,

In my report I've written

IF go_custom_container IS INITIAL.

...

CALL METHOD go_grid->set_table_for_first_display

EXPORTING

it_toolbar_excluding = it_exclude

i_structure_name = 'ZST_CAT_INV'

is_layout = gs_layout

CHANGING

it_fieldcatalog = gt_fieldcat

it_outtab = it_record.

ELSE.

CALL METHOD go_grid->refresh_table_display.

ENDIF.

the problem is CALL METHOD go_grid->refresh_table_display. right?

But this ALV GRID is call by a list by an at-selection screen event. If I don't use this instruction, when I back in the list and choose another ALV GRID, I display always the same ALV GRID with the same data.

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:38:48 GMT

The Example prg is using Classes, then you need to use the same approach in the way i mentioned below...

You need to Update the ITAB with the Modifeid values.

*---------------------------------------------------------------------*
*       CLASS lcl_event_handler DEFINITION
*---------------------------------------------------------------------*
CLASS LCL_EVENT_HANDLER DEFINITION .
  PUBLIC SECTION .
    METHODS:
**Handler to Check the Data Change
    HANDLE_DATA_CHANGED FOR EVENT DATA_CHANGED
                         OF CL_GUI_ALV_GRID
                         IMPORTING ER_DATA_CHANGED
                                   E_ONF4
                                   E_ONF4_BEFORE
                                   E_ONF4_AFTER.

ENDCLASS.                    "lcl_event_handler

DEFINITION

**Handle Data Change
  METHOD HANDLE_DATA_CHANGED.
    DATA: X_CHANGE TYPE LVC_S_MODI,
          X_FINAL TYPE T_FINAL,
          X_OCRC TYPE ZSD_OC_HOLD,
          L_FLAG.

    LOOP AT ER_DATA_CHANGED->MT_GOOD_CELLS INTO X_CHANGE.
      IF X_CHANGE-FIELDNAME = 'ZZOCHOLDRC'.
        READ TABLE IT_FINAL INTO X_FINAL INDEX X_CHANGE-ROW_ID.
        IF SY-SUBRC = 0.
          READ TABLE IT_OCRC INTO X_OCRC WITH KEY
                                         ZZOCHOLDRC = X_CHANGE-VALUE
                                        TRANSPORTING ZZRCDESC.

          IF SY-SUBRC = 0.
            X_FINAL-ZZRCDESC = X_OCRC-ZZRCDESC.
            MODIFY IT_FINAL FROM X_FINAL INDEX X_CHANGE-ROW_ID
                                         TRANSPORTING ZZRCDESC.
            L_FLAG = 'X'.
          ENDIF.
        ENDIF.
      ENDIF.
      IF X_CHANGE-FIELDNAME = 'ZZPROMDT'.
        READ TABLE IT_FINAL INTO X_FINAL INDEX X_CHANGE-ROW_ID.
        IF SY-SUBRC = 0.
          X_FINAL-ZZPROMDT = X_CHANGE-VALUE.
          MODIFY IT_FINAL FROM X_FINAL INDEX X_CHANGE-ROW_ID
                                       TRANSPORTING ZZPROMDT.
          L_FLAG = 'X'.
        ENDIF.
      ENDIF.
    ENDLOOP.
    IF L_FLAG = 'X'.
      CLEAR V_DATA_CHANGE.
      V_DATA_CHANGE = 'X'.
    ENDIF.
  ENDMETHOD.                    "data_changed

**you need to SET the HANDLER after the method first display.

  CREATE OBJECT G_HANDLER.
  SET HANDLER G_HANDLER->HANDLE_DATA_CHANGED FOR G_GRID.

try this

vijay

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:40:08 GMT

I think this will solve your Problem,.

reward for helpful answers...

regards

vijay

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 14:57:36 GMT

Hi,

I dont think there is any problem with REFRESH_TABLE_DISPLAY call...that is fine..

Your internal table it_record gets updated with your changes on ALV Grid only when you call CHECK_CHANGED_DATA method or whenever event data_changed is fired.

Now if you are dealing with some REFRESH button in your PAI module then have a call to CHECK_CHANGED_DATA method of your grid reference go_grid...

If you put a break-point then after the CHECK_CHANGED_DATA method call you should see your changes in it_record table..

Hope this helps..

Sri

Re: ALV GRID update internal table

Former Member — Thu, 01 Dec 2005 15:03:11 GMT

Hi Can you Try to Give the Code,SO thatit is easy to see

and can fix the problem...

regards

vijay