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ALV get_frontend_fieldcatalog and set_frontend_fieldcatalog not working

Hi all Gurus,

I have devoloped an ALV report (Using cl_gui_alv_grid & cl_gui_custom_container), after the grid is displayed using set_table_for_first_display method when user clicks "Back" button, I call below methods.

....

case 'SY-UCOMM'

WHEN 'BACK'.

DATA : t_filedcat TYPE lvc_t_fcat,
       wa_filedcat TYPE lvc_s_fcat.

      CALL METHOD obj_alv_grid->get_frontend_fieldcatalog
        IMPORTING
          et_fieldcatalog = t_filedcat[].

      LOOP AT t_filedcat INTO wa_filedcat .
        IF wa_filedcat-fieldname = 'POSID' .
          wa_filedcat-edit = 'X' .
          MODIFY t_filedcat FROM wa_filedcat .
        ENDIF .
      ENDLOOP .

      CALL METHOD obj_alv_grid->set_frontend_fieldcatalog
        EXPORTING
          it_fieldcatalog = t_filedcat[].

CALL SCREEN 9001.    " same screen which ALV initially displayed

....

t_filedcat modifies accordingly. But Edit mode doesn't work. need your advice.

Thank you all in advance..

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  • Best Answer
    author's profile photo Former Member
    Former Member
    Posted on May 24, 2011 at 07:59 AM

    Hi,

    > t_filedcat modifies accordingly. But Edit mode doesn't work. need your advice.

    You mean the field catalog of your report is not updated? You should use REFRESH_TABLE_DISPLAY of CL_GUI_ALV_GRID to refresh the list.

    Hope this helps.

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    • Former Member T Fdo

      Have you wrote the code in PAI of screen 9001?

      write the below code in PAI of screen 9001 and no need to call screen 9001 again.

      case sy-ucomm.

      when 'BACK'.*

      CALL METHOD us_alvgrid->get_frontend_fieldcatalog

      IMPORTING

      et_fieldcatalog = is_fieldcat.

      LOOP AT is_fieldcat INTO e_fieldcat .

      IF e_fieldcat-fieldname = 'TEST'' .

      e_fieldcat-edit = 'X' .

      MODIFY is_fieldcat FROM e_fieldcat .

      ENDIF .

      ENDLOOP .

      CALL METHOD us_alvgrid->set_frontend_fieldcatalog

      EXPORTING

      it_fieldcatalog = is_fieldcat[].

      if us_alvgrid is not initial.

      CALL METHOD us_alvgrid->refresh_table_display

      EXCEPTIONS

      finished = 1

      OTHERS = 2.

      else.

      call method set_table for first display after creating the object of ALV grid.

      endif.

      endcase

      hope this will help.

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