Modify the value of a cell in an ALV. Rewarding points.

Question

Hello Gurus, i am modifying the value of a certain cell in the internal table that is displayed in the ALV using the data_changed event, but when i refresh the ALV the values shown are the old ones.
Help.

Answer 1

Hello Ioan
Unfortunately you do not explain you scenario clearly enough. Therefore I must do some speculations.
You have an editable ALV list. The user can change data but not field USNAMECH which might be the user who changed the data.
A big question is how the CHECK_DATA_CHANGED event is raised. Perhaps you have registered the EDIT event (method REGISTER_EDIT_EVENT). Then the scenario would look like this:
1. User changes data and pushes the ENTER button.
2. Since the EDIT event is registered this triggers event CHECK_DATA_CHANGED.
3. In event handler method ON_DATA_CHANGED you enrich the changed data with the name of the current user.
4. And now you need to push this data back to your ABAP.
If this is your scenario then just trigger PAI from within your event handler method ON_DATA_CHANGED:
METHOD on_data_changed. "xxx
       modify itab index mod_cells-row_id from wa_itab transporting USNAMECH disponibilrag.
          "CALL METHOD grid->refresh_table_display.
  CALL METHOD cl_gui_cfw=>set_new_ok_code
    EXPORTING
      new_code = 'DUMMY'
*    IMPORTING
*       rc =
ENDMETHOD.
MODULE USER_COMMAND_nnnn PAI.
  CASE gd_okcode.
    WHEN 'BACK'  OR
               'EXIT'     OR
               'CANC'.
      set screen 0. leave screen.
    WHEN 'DUMMY'.
"  Do nothing here or perhaps call method:
" CALL METHOD grid->refresh_table_display
" Yet should not be necessary.
    WHEN others.
    ENDCASE.
ENDMODULE.
Regards
  Uwe