How to capture the value selected in the drop down box

Question

Hi all,
I am populating values in  drop down box by using FM vrm_set_values in module pool.
like below
01  ABC
02 ACB
03 BCA
04 CAB
in module pool drop down box element name is RQGM-VALUE.
Problem is what ever the value is select in the drop down box from above element RQGM-VALUE is not filling any value.
i need to capture the value selected in the drop down box and pass it to another variable.

Answer 1

Hi,
Refer this standard code. Your issue will be resolve.
REPORT demo_dynpro_dropdown_listbox.
TYPE-POOLS vrm.
DATA: name  TYPE vrm_id,
      list  TYPE vrm_values,
      value LIKE LINE OF list.
DATA: wa_spfli TYPE spfli,
      ok_code TYPE sy-ucomm,
      save_ok TYPE sy-ucomm.
TABLES demof4help.
name = 'DEMOF4HELP-CONNID'.
CALL SCREEN 100.
MODULE cancel INPUT.
  LEAVE PROGRAM.
ENDMODULE.
MODULE init_listbox OUTPUT.
  CLEAR demof4help-connid.
  SELECT  connid cityfrom cityto deptime
    FROM  spfli
    INTO  CORRESPONDING FIELDS OF wa_spfli
   WHERE  carrid = demof4help-carrier2.
    value-key  = wa_spfli-connid.
    WRITE wa_spfli-deptime TO value-text USING EDIT MASK '__:__:__'.
    CONCATENATE value-text
                wa_spfli-cityfrom
                wa_spfli-cityto
                INTO value-text SEPARATED BY space.
    APPEND value TO list.
  ENDSELECT.
  CALL FUNCTION 'VRM_SET_VALUES'
       EXPORTING
            id     = name
            values = list.
ENDMODULE.
MODULE user_command_100.
  save_ok = ok_code.
  CLEAR ok_code.
  IF save_ok = 'CARRIER' AND NOT demof4help-carrier2 IS INITIAL.
    LEAVE TO SCREEN 200.
  ELSE.
    SET SCREEN 100.
  ENDIF.
ENDMODULE.
MODULE user_command_200.
  save_ok = ok_code.
  CLEAR ok_code.
  IF save_ok = 'SELECTED'.
    MESSAGE i888(sabapdocu) WITH text-001 demof4help-carrier2
                                        demof4help-connid.
  ENDIF.
ENDMODULE.