ALV get_frontend_fieldcatalog and set_frontend_fieldcatalog not working

[tharaka_fernando]

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..

[jarryq]

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.

[tharaka_fernando]

Hi,

Thank you for the response.

Fieldcatalog modifies the change in the loop (as per code).

wa_filedcat-edit = 'X' .

MODIFY t_filedcat FROM wa_filedcat .

METHOD obj_alv_grid->set_frontend_fieldcatalog produses the requirement I want. (ex : when user clicks "Back" button the "POSID" field column should be editable )

But This is not happening in the screen 9001. (as per code)

I have used "refresh_table_display" after the "set_table_for_first_display".

any clue...

Thanks

Edited by: jam123 on May 24, 2011 12:07 PM

Edited by: jam123 on May 24, 2011 12:08 PM

[Former Member]

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.