Problem with displaying 2 ALV Grids

[Former Member]

Hello everyone,

I have created a report which calls 2 ALV Grids. Therefore I used ABAP OO.

I got a selection screen which calls the first ALV Grid with dynpro number 0100. It gives a list of data. If I click on one of the data rows, it calls the second ALV Grid with dynpro number 0110 and gives me a detailed overview of the line items of the clicked row of the first grid. Therefore I use event double_click. When I display the second grid and click on back (F3), i get back to the first grid. There I can for example double click on some other row and will get the line items of the new selected row, etc. etc.

In the second dynpro 0110 (for detailed line items) I separate between first call (creating ALV container) and further calls (refreshing ALV container). The display of the selected line items works fine. But I got some problems with the layout, because I canot change anything of the layout. When I e.g. try to mark a column for fading it out, after marking the column it gets immedialy unmarked, so that I canot fade it out. I think this happens because of the refresh_table_display. But when I do not use the refresh_table_display and always free and create the container, it works with the layout but my selected data in second grid is always the same like I have chosen when clicking on any of the rows for the first time. It does not get updated after clicking on another row.

Does anyone have an idea?

FORM alv_create_epo USING us_variant.
  DATA: l_batch    TYPE i,
        ls_stable  TYPE lvc_s_stbl.
* ---------------------------------------------------------------------*
* Für ersten Aufruf des ALV-Containers
* ---------------------------------------------------------------------*
  IF gr_alv_epo IS NOT BOUND.
*   Handelt es sich um eine Hintergrundverarbeitung?
    CALL METHOD cl_gui_alv_grid=>offline
      RECEIVING
        e_offline = l_batch.
*   Container darf nicht erstellt werden bei Batch-Verarbeitung, sonst Dump!
    IF l_batch IS INITIAL.
*       CustomContainer für ALV instanziieren
      CREATE OBJECT gr_container_epo
        EXPORTING
          container_name = 'CONTAINER_EPO'.
    ENDIF.
*   ALV-Instanz generieren
    CREATE OBJECT gr_alv_epo
      EXPORTING
        i_parent      = gr_container_epo
        i_appl_events = 'X'.
*   Ereignisbehandler
    CREATE OBJECT evt_handler.
    SET HANDLER evt_handler->handle_toolbar       FOR gr_alv_epo.
    SET HANDLER evt_handler->handle_user_command  FOR gr_alv_epo.
    SET HANDLER evt_handler->handle_double_click  FOR gr_alv_epo.
    SET HANDLER evt_handler->set_subtotal_text    FOR gr_alv_epo.
*   Zusätzliche Events für in KST-Bericht manipulierte Summen
    IF p_kst IS NOT INITIAL.
      SET HANDLER evt_handler->handle_after_refresh   FOR gr_alv_epo.
      SET HANDLER evt_handler->print_top_of_list      FOR gr_alv_epo.
    ENDIF.
*   ALV-Grid ausgeben
    CALL METHOD gr_alv_epo->set_table_for_first_display
      EXPORTING
        is_variant                    = us_variant
        is_layout                     = gs_layout
        i_save                        = 'A'
        it_toolbar_excluding          = gt_toolbar_excluding
      CHANGING
        it_outtab                     = <ft_data_epo>
        it_fieldcatalog               = gt_fieldcat_epo
        it_sort                       = gt_sort
      EXCEPTIONS
        invalid_parameter_combination = 1
        program_error                 = 2
        too_many_lines                = 3
        OTHERS                        = 4.
* ---------------------------------------------------------------------*
* Für Folgeaufrufe des ALV-Containers
* ---------------------------------------------------------------------*
  ELSE.
*   Cursor bleibt nach Refresh bei ausgewählter Zeile und Spalte
    ls_stable-row   = 'X'.
    ls_stable-col   = 'X'.
    CALL METHOD gr_alv_epo->refresh_table_display
      EXPORTING
        is_stable = ls_stable
      EXCEPTIONS
        finished  = 1
        OTHERS    = 2.
  ENDIF.
ENDFORM.                    "alv_create_epo

Regards
Michael Boguth

[RaymondGiuseppi]

In your set_table_for_first_display call, use the is_variant parameter, in this parameter keep the current report name in the first field, but change the handle field to differentiate both grid, so layout/field catalog/display variant will no longer interfere.

Regards,

Raymond

[Former Member]

Hello Raymond,

thanks for your answer but I don't think that this is the problem. I already tried with is_variant and already got there to the differing handles.

is_variant is filled for Grid 1 at the start of the programm

************************************************************************
INITIALIZATION.
************************************************************************
* Variante vorbelegen
  gs_variant-username = sy-uname.
  gs_variant-report   = sy-repid.
  gs_variant-handle   = 'SUM'.

for Grid 2 at the PBO of second dynpro...

MODULE status_0110 OUTPUT.
  SET PF-STATUS 'Z_STATUS_ALV'.
  SET TITLEBAR  'TITLE_ALV'.
* Variante vorbelegen
  gs_variant-username = sy-uname.
  gs_variant-report   = sy-repid.
  gs_variant-handle   = 'EPO'.
  PERFORM alv_fieldcat_epo CHANGING gt_fieldcat_epo.
  PERFORM alv_layout_epo   CHANGING gs_layout.
  PERFORM alv_sort_epo     CHANGING gt_sort.
  PERFORM alv_toolbar      CHANGING gt_toolbar_excluding.
  PERFORM alv_create_epo   USING    gs_variant.
ENDMODULE.                    "status_0110 OUTPUT

Unfortunately it does not help.

I think it happens because of the refresh because when I try to rightclick one column for fading it out, I can see that the alv gets refreshed and because of the refresh the column gets immediately unmarked so that I canot fade it out.

Regards

Michael

[Venkat_Sesha]

Hi Michael,

For marking a field in the Layout. Use the below mentioned code.

GS_LAYOUT should be of type LVC_S_LAYO.

  GS_LAYOUT-SEL_MODE   = 'D'.

Hope this helps.

[kesavadas_thekkillath]

I too feel same as Raymond regarding the IS_VARIANT parameter, let me try it myself and will update you.

You can also have a look at this good blog by Uwe

[Former Member]

**For first Alv output  

W_VARIANT-REPORT    = SY-REPID.
     w_variant-handle = 'ALV1'.

**For second alv Output

  W_VARIANT1-REPORT = SY-REPID.
w_variant1-handle = 'ALV2'.

[Former Member]

Hello friends,

I think that problem is when you selected a secondary list,

The seelcted row is fading,for that use the below stmt.

for getting the row color gs_filnal-light = '3'.

[Venkat_Sesha]

Hi Michael,

Please check with the Field Catlog you are filling seperately and correctly for both the ALVs.

Also for Freeing the display check the below method.

* Free the Container After Data is Displayed
      CALL METHOD G_CONT->FREE( ). "Instance of CL_GUI_ALV_GRID

If you are still having problem with Layout

Pass the parameter 'X' to the Field I_CONSISTENCY_CHECK in SET_TABLE_FOR_FIRST_DISPLAY

Hope this helps

[kesavadas_thekkillath]

"Try to mark a column for fading it out, after marking the column it gets immedialy unmarked"

Are you trying to do this manually with the ALV column after the list is displayed in the screen ?

[Former Member]

Yes. I got the problem only in the second (detailed) ALV screen. I got my list of columns and mark it by rightclicking.

Here is a screnshot of first ALV screen where it works.

[kesavadas_thekkillath]

Hi,

The problem is your PBO get's tirggered again in the second screen when the option is chosen from drop down, here the alv is refreshed again so that it retains the old vales passed to the ALV. In your case, the refresh need not be triggered in this case. Could you please check this by debugging.

[Former Member]

Hm I was differing between set_table_for_first_display and refresh_table_display because without differenciation the data was not shown correctly.

I got my first alv grid and when i doubleclick on one value i get to the second detailed alv grid. So this is the set_table_for_first_display where the data is shown correctly.

But then - when i go back to first grid - and try to double-click on a differing value than at the first time, the data does not get refreshed and I see the detail value of the first click again. This is why I use the ELSE with the refresh.

[kesavadas_thekkillath]

Yes that is correct, I feel that the refresh is again triggered in the second screen after you right click on the column and set some thing.

[Former Member]

Yes it is like this and this is the problem 🙂

After marking a column by rightclicking, I always get into PAI of second alv grid, and then into PBO of second alv grid and there I always get to the ELSE with my refresh because the grid instance already exists.

But I thought that it is normal that PAI/PBO gets triggered after marking a column?

[kesavadas_thekkillath]

No, it does not happen if you choose an option from right click menu unless due to some events ,

Could you please check the events registered from your side. 🙂 I am glad that atleast you got a hint to trouble shoot it.

[kesavadas_thekkillath]

You can check the demo program BCALV_TEST_GRID_EVENTS for more details.

[Former Member]

Hm no it does not look like that one of the events is the reason. When I cut them out so that no event is raised I get to PAI as well.

But it is not like when choosing an option of the right click menu. It's before that! I don't get there because the refresh of the list is faster than the right click menu. I only sew for a second the right click context menu but I am not able to click on any line like 'Hide' for example.

When I try to debug with /h, I get immediately into PAI module of alv grid2 after rightclicking on the column.

[Former Member]

After hours of searching I finally found it, thanks a lot Kesavadas!!!

You were right it was because of events, but not because of mine 🙂

In every SAP ALV Grid list I created in the last years I used the following source code for creating Grid instance, because I found it somewhere when I started progamming ALV Grids.

It is the parameter i_appl_events which looks like that it activates several additional events like reacting when marking a column and so getting me to PAI.

*   ALV-Instanz generieren
    CREATE OBJECT gr_alv_epo
      EXPORTING
        i_parent      = gr_container_epo.
        i_appl_events = 'X'.

I greyed it out now and it works fine. Thanks a lot for getting me into the right direction

Can anyone please tell me for what I need the application events?