How to show fixed values instead of field values in ALV cell.

Question

Hi colleagues,
I have a ALV object of type CL_GUI_ALV_GRID.
I have associted a table with it which has a field called refresh type which is of type char1.
My program works fine.
But the problem is,
The refresh_type field has fixed values in its value range.
On display of ALV i want to show the associated fixed value instead of actual value in table content.
I donno the way to do it.
Please help me.
-Trupti

Answer 1

Another way to do this would be to define a conversion exit function for use in the report.
You can copy a SAP-provided function group like ALFA as a template, but you may need untyped importing/exporting parameters. Name the new functions as CONVERSION_EXIT_Zxxx_OUTPUT and CONVERSION_EXIT_Zxxx_INPUT where Zxxx is some string you choose.
In this case the input to the ...OUTPUT function will be the code value from the database and the output value will be the corresponding text. So the code of the function CONVERSION_EXIT_Zxxx_OUTPUT will do the conversion suggested in steps 2 & 3 of Marcin's response above.
Here is an example based on the SFLIGHT model to enhance example report BCALV_GRID_DEMO.
First the conversion function:  (I used 'zalv' as my identifying string for the conversion.)
function conversion_exit_zalv_output.
*"*"Local Interface:
*"  IMPORTING
*"     VALUE(INPUT)
*"  EXPORTING
*"     VALUE(OUTPUT)
  field-symbols:
    <output> type c,
    <carrid> type c.
  assign input  to <carrid> casting.
  assign output to <output> casting.
  select single carrname from  scarr into <output>  " convert code to text
         where  carrid  = <carrid>.
endfunction.
In a copy of program BCALV_GRID_DEMO, make changes in the module pbo.
module pbo output.
  set pf-status 'MAIN100'.
  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.
* " changes start here
    data: gs_fcat type lvc_s_fcat,
          gt_fcat type lvc_t_fcat.
    tables: dd03l.
    select * from dd03l where tabname = 'SFLIGHT'. " fill field catalog
      if dd03l-fieldname = 'CARRID'.
        gs_fcat-inttype = dd03l-inttype.
        gs_fcat-outputlen = 20.
        gs_fcat-coltext = 'Carrier'.
        gs_fcat-seltext = 'Carrier'.
        gs_fcat-edit_mask = '==ZALV'. " == with the string you used to name the functions
      else.
        clear gs_fcat.
        gs_fcat-ref_table = dd03l-tabname.
      endif.
      gs_fcat-fieldname = dd03l-fieldname.
      append gs_fcat to gt_fcat.
    endselect.
* " changes end here
    call method grid1->set_table_for_first_display
      exporting
        i_structure_name = 'SFLIGHT'
      changing
        it_fieldcatalog  = gt_fcat
        it_outtab        = gt_sflight.
  endif.
endmodule.                    "PBO OUTPUT
If you run this amended program, you see appropriate carrier texts in the ALV grid, where the original program had the IATA codes.
This approach makes sense if, for example, the same translation is also required elsewhere, as the function can easily be reused.
best wishes
Ed