topic Re: alv grid OO runtime error after adding new rows in Application Development and Automation Discussions

alv grid OO runtime error after adding new rows

Former Member — Tue, 21 Oct 2008 07:08:19 GMT

Hi everybody,

I have a problem with alv OO.

I want to add an empty and editable row to my alv grid and save it after the user filled it.

I have my alv grid:

 
  IF G_CUSTOM_CONTAINER IS INITIAL.
    CREATE OBJECT G_CUSTOM_CONTAINER
      EXPORTING
        CONTAINER_NAME = G_CONTAINER.
    CREATE OBJECT GRID1
      EXPORTING
        I_PARENT = G_CUSTOM_CONTAINER.

    CALL METHOD grid1->set_ready_for_input
      EXPORTING
        i_ready_for_input = 1. 
    CALL METHOD GRID1->SET_TABLE_FOR_FIRST_DISPLAY
      EXPORTING
        it_toolbar_excluding = it_exclude
        is_layout = ls_layout
      CHANGING
        IT_OUTTAB            = it_outtab
        it_fieldcatalog      = it_fieldcat[].


    CREATE OBJECT event_receiver.
    SET HANDLER event_receiver->handle_user_command FOR grid1.
    SET HANDLER event_receiver->handle_toolbar FOR grid1.

    CALL METHOD grid1->set_toolbar_interactive.

Then i have a button, that adds a new row to my grid:

      

METHOD handle_user_command.
DATA: lt_rows TYPE lvc_t_row.
 CASE e_ucomm.
 when 'newline'.
        wa_outtab-field1= ''.
        wa_outtab-field2 = ''.
        wa_outtab-field3 = ''.
        wa_outtab-field4 = ''.
        wa_outtab-flag = 'N'.
        ls_celltab-Style = GRID1->mc_style_enabled.
        CLEAR wa_outtab-Style.

        ls_celltab-fieldname = 'field1'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'field2'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'field3'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'field4'.
        insert ls_celltab into table wa_outtab-Style.
        append wa_outtab to IT_OUTTAB.
        clear wa_outtab.
        Call METHOD GRID1->refresh_table_display.

Now the problem is, i can add a row, but as soon as i fill it, i get a runtime error for any user_command.

So for example:

1. I add an empty row

2. I fill it.

3. I want to add another row --> runtimer error:

Trigger Location of Runtime Error

Program CL_GUI_ALV_GRID===============CP

Include CL_GUI_ALV_GRID===============CM031

Row 96

Module type (METHOD)

Module Name FOREIGN_KEY_CHECK

   

   66                        OF STRUCTURE <ls_ref_table> TO <l_field_to>.
   67
   68       CLEAR lflg_moved.
   69       CLEAR l_no_check.
   70
   71       READ TABLE ct_mod_cells INTO ls_mod_cells
   72                               WITH KEY fieldname = ls_fields-fieldname
   73                                        row_id    = i_row_id.
   74
   75       IF sy-subrc EQ 0.
   76         l_changed_field = ls_fields-fieldname.
   77
   78         READ TABLE m_cl_variant->mt_fieldcatalog INTO l_fcat WITH KEY
   79                  fieldname = ls_fields-fieldname.
   80         IF ls_mod_cells-value IS INITIAL AND l_fcat-no_init_ch ca 'XB'.
   81           l_no_check = 'X'.
   82         ELSEIF ls_mod_cells-error EQ 'X'.
   83           <l_field_to> = ls_mod_cells-value.
   84           lflg_moved = 'X'.
   85         ENDIF.
   86       ENDIF.
   87
   88       IF l_no_check = 'X'.
   89         MOVE-CORRESPONDING ls_mod_cells TO ls_good_cells.
   90         APPEND ls_good_cells TO ct_good_cells.
   91       ELSE.
   92         IF lflg_moved IS INITIAL.
   93           ASSIGN COMPONENT ls_fields-fieldname
   94                            OF STRUCTURE cs_wa TO <l_field_from>.
   95           IF sy-subrc NE 0.
>>>>>             MESSAGE x000(0k).
   97           ENDIF.
   98           <l_field_to> = <l_field_from>.
   99         ENDIF.
  100
  101 *... does checktable contain other key fields which need to be
  102 *    considered
  103         MOVE ls_check-ref_table  TO ls_buf_id-tabname.
  104         MOVE ls_fields-fieldname TO ls_buf_id-fieldname.
  105
  106         MOVE ls_check-ref_table  TO l_tbfk_tabname.
  107         IF ls_fields-ref_field IS INITIAL.
  108           MOVE ls_fields-fieldname TO l_tbfk_fieldname.
  109         ELSE.
  110           MOVE ls_fields-ref_field TO l_tbfk_fieldname.
  111         ENDIF.
  112
  113         IMPORT dd05m_tab TO lt_dd05m
  114                dd08v_tab TO lt_dd08v
  115                timestamp TO ls_timestamp

First i thought the Problem is that i fill in wrong data (because of "Foreign_key_check"), but thats definitivly not the problem, because if i add the new row with default values like this, i can save it without any problems. But if i edit any of these cells, i get an error again, so the problem has nothing to do with the content of the cells.

      

METHOD handle_user_command.
DATA: lt_rows TYPE lvc_t_row.
 CASE e_ucomm.
 when 'newline'.
        wa_outtab-field1= 'Text'.
        wa_outtab-field2 = '12345'.
        wa_outtab-field3 = '100'.
        wa_outtab-field4 = 'AB'.
        wa_outtab-flag = 'N'.
        ls_celltab-Style = GRID1->mc_style_enabled.
        CLEAR wa_outtab-Style.

        ls_celltab-fieldname = 'field1'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'field2'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'field3'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'field4'.
        insert ls_celltab into table wa_outtab-Style.
        append wa_outtab to IT_OUTTAB.
        clear wa_outtab.
        Call METHOD GRID1->refresh_table_display.

Does anyone have an idea where's my mistake?

Thanks for your help.

Cheers

DTox2k

Edited by: DTox2k on Oct 21, 2008 9:08 AM

Edited by: DTox2k on Oct 21, 2008 9:18 AM

Re: alv grid OO runtime error after adding new rows

Former Member — Tue, 21 Oct 2008 07:40:02 GMT

why are you using the fieldnames in small letters. use CAPS

ls_celltab-fieldname = 'field1'.

ls_celltab-fieldname = 'FIELD1'.

Re: alv grid OO runtime error after adding new rows

Former Member — Tue, 21 Oct 2008 08:18:11 GMT

thanks for your answer!

you're right, my mistake, in my coding all fieldnames are in caps, else the cells wouldn't be editable, i just changed the fielddnames here to make it easier to read.

Edited by: DTox2k on Oct 21, 2008 10:18 AM

Re: alv grid OO runtime error after adding new rows

uwe_schieferstein — Tue, 21 Oct 2008 10:36:26 GMT

Hello

The solution for your problem has been described in sample report ZUS_SDN_ALVGRID_EDITABLE_8A in thread

Regards

Uwe

Re: alv grid OO runtime error after adding new rows

Former Member — Tue, 21 Oct 2008 12:17:43 GMT

Hi Uwe Schieferstein,

thanks for your answer.

i tried to understand your report (im new to ABAP OO and its my first report with an alv grid ) and implement your solution, but it still doesn't work:

First i replace the function code:

  METHOD handle_toolbar.
* § 2.In event handler method for event TOOLBAR: Append own functions
*   by using event parameter E_OBJECT.
    DATA: ls_toolbar  TYPE stb_button.

    LOOP AT e_object->mt_toolbar INTO ls_toolbar.
      CASE ls_toolbar-function.
        WHEN cl_gui_alv_grid=>mc_fc_loc_delete_row.
          ls_toolbar-function = 'DELETE_ROW'.
          MODIFY e_object->mt_toolbar FROM ls_toolbar INDEX syst-tabix.

        WHEN cl_gui_alv_grid=>MC_FC_LOC_COPY_ROW.
          ls_toolbar-function = 'ADD_ROW'.
          MODIFY e_object->mt_toolbar FROM ls_toolbar INDEX syst-tabix.
        WHEN OTHERS.
          CONTINUE.
      ENDCASE.

    ENDLOOP.

then trigger PAI:

      
METHOD handle_user_command.
DATA: lt_rows TYPE lvc_t_row.
CASE e_ucomm.
when 'ADD_ROW'.

      when OTHERS.
        return.
    ENDCASE.
        CALL METHOD sender->get_selected_rows
         IMPORTING
           et_index_rows = mt_sel_rows
*        et_row_no     =
           .


    CALL METHOD cl_gui_cfw=>set_new_ok_code
      EXPORTING
        new_code = e_ucomm.

        .
  ENDMETHOD.                           "handle_user_command

And finally my PAI Module:

MODULE PAI INPUT.
*   to react on oi_custom_events:
  call method cl_gui_cfw=>dispatch.
  CASE OK_CODE.
    WHEN 'EXIT'.
      PERFORM EXIT_PROGRAM.
    when 'ADD_ROW'.

              DATA: ld_next   TYPE i,
         ls_row    TYPE lvc_s_row.


        SORT event_receiver->mt_sel_rows BY index DESCENDING. " !!!

        LOOP AT event_receiver->mt_sel_rows INTO ls_row.
          READ TABLE it_outtab INTO wa_outtab INDEX ls_row-index.

          CLEAR: wa_outtab-FIELD1. 
          CLEAR: wa_outtab-FIELD2.
          CLEAR: wa_outtab-FIELD3.
          CLEAR: wa_outtab-FIELD4.
          wa_outtab-flag = 'N'.
          ls_celltab-Style = GRID1->mc_style_enabled.
        CLEAR wa_outtab-Style.
* Alle Spalten der neuen Zeile auf editierbar einstellen
        ls_celltab-fieldname = 'FIELD1'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'FIELD2'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'FIELD3'.
        insert ls_celltab into table wa_outtab-Style.
        ls_celltab-fieldname = 'FIELD4'.
        insert ls_celltab into table wa_outtab-Style.
          ld_next = ls_row-index + 1.
          INSERT wa_outtab INTO it_outtab INDEX ld_next.
        ENDLOOP.
        Call METHOD GRID1->refresh_table_display.
    WHEN OTHERS.
*     do nothing
  ENDCASE.
  CLEAR OK_CODE.
ENDMODULE.

The only difference to your code is that i had to call refresh_table_display, else the new row doesn't appear.

But i still have the same problem now, as soon as i edit a cell, i get the same runtime error for any user_command then before.

Cheers

DTox2k

Re: alv grid OO runtime error after adding new rows

Former Member — Wed, 22 Oct 2008 06:45:13 GMT

I continued testing my program and i now think the problem is not how i add an row, it must be more general, because i have the same Problem with standard alv functions, so for example i have a button, that makes one cell of all selected rows editiable:

      WHEN 'change'.


        call METHOD GRID1->GET_SELECTED_ROWS
          IMPORTING
            et_index_rows = it_index_rows.
        clear wa_outtab-Style.
        ls_celltab-fieldname = 'ZZTXT'.
        ls_celltab-Style = GRID1->mc_style_enabled.
        loop at it_index_rows into wa_index_rows.
          read TABLE it_outtab into wa_outtab INDEX wa_index_rows-INDEX.
          if ( wa_outtab-lock <> 'X' and wa_outtab-lock <> 'N' ).
            if ( wa_outtab-Style[] is not initial ).
              modify wa_outtab-Style from ls_celltab INDEX 1.
            else.
              insert ls_celltab into table wa_outtab-Style.
            endif.
            wa_outtab-lock = 'X'.
            modify it_outtab from wa_outtab INDEX wa_index_rows-INDEX.

          endif.
          clear wa_outtab.
        endloop.
* Refresh des Grids
        Call METHOD GRID1->refresh_table_display.

This button works perfectly for all rows that are on my grid for the first display. Now, if i duplicate one of these rows (with MC_FC_LOC_COPY_ROW) and try to use my this button for the duplicated row, i get this runtime error again.

Any ideas what im doing wrong?

Cheers

DTox2k

Re: alv grid OO runtime error after adding new rows

Former Member — Wed, 22 Oct 2008 14:44:22 GMT

I solved the Problem by myself.

My table it_outtab didn't have a column MANDT, this caused the "foreign_key_check"-error as soon as i changed any cell of a new row.