Re: problem with user_command for check box in alv

you have to refresh the ALV.

Try this after modifying the internal table in the user command routine :

lo_grid1  TYPE REF TO cl_gui_alv_grid,  " ALV instance

l_repid type syrepid ,

l_repid = sy-repid.

---------- Synchronize the grid data and internal table data -------

  CALL FUNCTION 'GET_GLOBALS_FROM_SLVC_FULLSCR'

    IMPORTING

      e_callback_program = l_repid

      e_repid            = l_repid

      e_grid             = lo_grid1.

                                       " Activate event data_changed

  CALL METHOD lo_grid1->check_changed_data.

  rs_selfield-refresh = 'X'.