Facing problem in populating a output field only

Question

Hi,
I have created two fields on the screen with names code and description. My requirement is to get F4 help on code field and on selecting value from the popup, the description field as well should filled. I am using FM 'MD_POPUP_SHOW_INTERNAL_TABLE' to get a popup. The popup I am getting is alright as it is showing values for both columns i.e. code and its description. But anyhow when I select a value from the popup list, code field gets filled but the other field remains empty.
I even debugged the program, and there I found that control is assinging values to both fields, but its not showing on screen for description field.
Need help.
Thanks,
Ram

Answer 1

Hi,
Check this function module MD_SHOW_PLANNING_REQUESTS.It is using that function module.
Check this code.May be it can help you.
                       Tables Declaration
tables : vbap.         " Sales Document: Item Data
                     Constant Declaration                                      *
CONSTANTS:
  C_X TYPE C VALUE 'X'.     " Translate to Uppercase
                     Variable Declaration                                      *
Variable for Table index
  data v_sytabix like sy-tabix.
Variable for Program name
  data L_NAME LIKE SYST-REPID.
                        Ranges Declaration                                     *
Range for getting values form selection screen
DATA: BEGIN OF range1 OCCURS 0,
         SIGN(1),
         OPTION(2),
         LOW  LIKE vbap-vbeln,
         high like vbap-vbeln,
      END OF range1.
                        Structure Declaration                                  *
                   Internal table Declaration                                  *
Internal table for Report output
  data: begin of i_vbap occurs 0,
          vbeln like vbap-vbeln,            " Sales Document
          posnr like vbap-posnr,            " Sales Document item
        end of i_vbap.
Internal table for output to the F4 help
  data: begin of I_DISPLAY occurs 0,
          vbeln like vbap-vbeln,            " Sales Document
          posnr like vbap-posnr,            " Sales Document item
        end of I_DISPLAY.
Internal table for return value form function module
  DATA: BEGIN OF I_RETURNVAL OCCURS 0.
          INCLUDE STRUCTURE DDSHRETVAL.     " Interface Structure Search
  DATA: END OF I_RETURNVAL.
Internal table for F4 help field heading
  DATA: I_FIELDTAB LIKE DFIES OCCURS 0 WITH HEADER LINE.
Internal table for getting screen values from selection screen
  data L_SCR_FIELDS LIKE DYNPREAD OCCURS 1 WITH HEADER LINE.
                     Field-Symbols                                   *
                     Selection-screen                                *
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME title text-001.
  select-options:
        S_VBELN for vbap-vbeln no intervals,
        S_POSNR for vbap-posnr no intervals.
SELECTION-SCREEN end OF BLOCK B1.
                     AT SELECTION-SCREEN ON VALUE-REQUEST            *
at selection-screen on value-request for s_posnr-low.
  clear: L_SCR_FIELDS, I_FIELDTAB, i_display, I_RETURNVAL.
  refresh: L_SCR_FIELDS, I_FIELDTAB, i_display, I_RETURNVAL.
  L_NAME = SYST-REPID.
  MOVE 'S_VBELN-LOW' TO L_SCR_FIELDS-FIELDNAME.
  APPEND L_SCR_FIELDS.
Call the Function module DYNP_VALUES_READ to get the values form
selection screen
  CALL FUNCTION 'DYNP_VALUES_READ'
    EXPORTING
      DYNAME                         = L_NAME
      DYNUMB                         = SYST-DYNNR
      TRANSLATE_TO_UPPER             = C_X         " X
    TABLES
      DYNPFIELDS                     = L_SCR_FIELDS
   EXCEPTIONS
     INVALID_ABAPWORKAREA           = 1
     INVALID_DYNPROFIELD            = 2
     INVALID_DYNPRONAME             = 3
     INVALID_DYNPRONUMMER           = 4
     INVALID_REQUEST                = 5
     NO_FIELDDESCRIPTION            = 6
     INVALID_PARAMETER              = 7
     UNDEFIND_ERROR                 = 8
     DOUBLE_CONVERSION              = 9
     STEPL_NOT_FOUND                = 10
     OTHERS                         = 11
  IF SY-SUBRC eq 0.
    LOOP AT L_SCR_FIELDS.
      range1-sign = 'I'.
      range1-option = 'EQ'.
      range1-low = L_SCR_FIELDS-FIELDVALUE.
      range1-high = space.
      append range1.
    ENDLOOP.
  ENDIF.
F4 help Field headings
  I_FIELDTAB-TABNAME = 'I_DISPLAY'.
  I_FIELDTAB-FIELDNAME = 'VBELN'.
  I_FIELDTAB-POSITION = '1'.
  I_FIELDTAB-OUTPUTLEN = '10'.
  I_FIELDTAB-INTTYPE = 'C'.
  I_FIELDTAB-INTLEN = '10'.
  APPEND I_FIELDTAB.
  I_FIELDTAB-FIELDNAME = 'POSNR'.
  I_FIELDTAB-POSITION = '2'.
  I_FIELDTAB-OFFSET = '10'.
  I_FIELDTAB-OUTPUTLEN = '6'.
  I_FIELDTAB-INTTYPE = 'N'.
  I_FIELDTAB-INTLEN = '6'.
  APPEND I_FIELDTAB.
Retrieve sales document, Sales document item from table Sales
Document: Item Data(VBAP).
Primary keys used for selection: VBELN
  select vbeln posnr from vbap
               into table i_display
               where vbeln in range1.
Call the function module F4IF_INT_TABLE_VALUE_REQUEST for F4 values
  CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
    EXPORTING
      RETFIELD               = 'POSNR'
      WINDOW_TITLE           = 'Line Item'
      VALUE_ORG              = 'S'
      MULTIPLE_CHOICE        = C_X           " (for muliple selection)
    TABLES
      VALUE_TAB              = I_DISPLAY
      FIELD_TAB              = I_FIELDTAB
      RETURN_TAB             = I_RETURNVAL
    EXCEPTIONS
      PARAMETER_ERROR        = 1
      NO_VALUES_FOUND        = 2
      OTHERS                 = 3
  IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ELSE.
Star for For single values
  READ TABLE I_RETURNVAL INDEX 1.
   S_POSNR-LOW = I_RETURNVAL-FIELDVAL.
End for the single values
Start For multiple selection
   loop at i_returnval.
     s_posnr-sign = 'I'.
     s_posnr-option = 'EQ'.
     s_posnr-low = I_RETURNVAL-FIELDVAL.
     append s_posnr.
   endloop.
   sort s_posnr.
   read table s_posnr index 1.
End for multiple selection
  ENDIF.
                     Start-of-selection                                        *
start-of-selection.
Retrieve sales document, Sales document item from table Sales
Document: Item Data(VBAP).
Primary keys used for selection: VBELN
  select vbeln posnr from vbap
                    into table i_vbap
                    where vbeln in s_vbeln
                      and posnr in s_posnr.
if the above selection is successful continue the process else exit *
form the report
  if sy-subrc ne 0.
   message e002 with 'No data to display'.
  endif.
                       End-of-selection                                        *
end-of-selection.
  if not i_vbap[] is initial.
    loop at i_vbap.
      write:/ i_vbap-vbeln, i_vbap-posnr.
    endloop.
  endif.