Check that at least on Selection Options are filled

Question

I have a program that has four selection options.  The user needs to enter a selection for at least one of the four selection options.  I coded this check in AT SELECTION-SCREEN ON BLOCK xyz.  This does not work because I have to enter at least one value first before I can load multiple values from a text file or the clipboard.
I only want the code that checks if at least one selection option is populated to execute when I select the EXECUTE button.  How do I do this?
Thanks.
Sandy

Answer 1

HI
GOOD
GO THROUGH THIS REPORT
REPORT ZSUBSCREEN.
TABLES: USR02,       "Logon data
         SSCRFIELDS.  "FIELDS ON SELECTION SCREENS
SUBSCREEN 1
SELECTION-SCREEN BEGIN OF SCREEN 100 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-010.
    SELECT-OPTIONS: USERNAME FOR USR02-BNAME.
SELECTION-SCREEN END OF BLOCK B1.
SELECTION-SCREEN END OF SCREEN 100.
SUBSCREEN 2
SELECTION-SCREEN BEGIN OF SCREEN 200 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK B2 WITH FRAME TITLE TEXT-020.
    SELECT-OPTIONS: LASTLOGI FOR USR02-TRDAT.
SELECTION-SCREEN END OF BLOCK B2.
SELECTION-SCREEN END OF SCREEN 200.
SUBSCREEN 3
SELECTION-SCREEN BEGIN OF SCREEN 300 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK B3 WITH FRAME TITLE TEXT-030.
    SELECT-OPTIONS: CLASSTYP FOR USR02-CLASS.
SELECTION-SCREEN END OF BLOCK B3.
SELECTION-SCREEN END OF SCREEN 300.
STANDARD SELECTION SCREEN FOR SCROLLING LEFT AND RIGHT
SELECTION-SCREEN: FUNCTION KEY 1,
                   FUNCTION KEY 2.
SELECTION-SCREEN: BEGIN OF TABBED BLOCK SUB FOR 15 LINES,
                   END OF BLOCK SUB.
START-OF-SELECTION.
     SELECT * FROM USR02 WHERE BNAME IN USERNAME
                           AND ERDAT IN LASTLOGI
                           AND CLASS IN CLASSTYP.
        WRITE: / 'User ', USR02-BNAME,
                 'Last Login Date ', USR02-TRDAT,
                 'Last Login Time ', USR02-LTIME,
                 'CLASS ', USR02-CLASS.
     ENDSELECT.
END-OF-SELECTION.
INITIALIZATION.
SCREEN ICON LEFT AND RIGHT
   SSCRFIELDS-FUNCTXT_01 = '@0D@'.
   SSCRFIELDS-FUNCTXT_02 = '@0E@'.
   SUB-PROG = SY-REPID.
   SUB-DYNNR = 100.
AT SELECTION-SCREEN.
   CASE SY-DYNNR.
     WHEN 100.
       IF SSCRFIELDS-UCOMM = 'FC01'.
         SUB-DYNNR = 300.
       ELSEIF SSCRFIELDS-UCOMM = 'FC02'.
         SUB-DYNNR = 200.
       ENDIF.
     WHEN 200.
       IF SSCRFIELDS-UCOMM = 'FC01'.
         SUB-DYNNR = 100.
       ELSEIF SSCRFIELDS-UCOMM = 'FC02'.
         SUB-DYNNR = 300.
       ENDIF.
     WHEN 300.
       IF SSCRFIELDS-UCOMM = 'FC01'.
         SUB-DYNNR = 200.
       ELSEIF SSCRFIELDS-UCOMM = 'FC02'.
         SUB-DYNNR = 100.
       ENDIF.
   ENDCASE.
AND TRY TO IMPLEMENT IN YOUR REPORT
THANKS
MRUTYUN