Multiple select options validation at selection screen

[Former Member]

Hi,

I have the requirement to create a selection screen with 3 select options. Two of them are cross-dependent. It is mandatory to fill one of them and it is not allowed to fill both. The third one is optional. I tried the validation at selection-screen on block... and I have a problem that search help buttons for select options react like execution buttons, when I press any of them I am getting one of errors instead of search help.

Any help on this issue would be appreciated.

Here is my code:

DATA:
      so_rbkp TYPE rbkp,
      so_mseg TYPE mseg.

SELECTION-SCREEN BEGIN OF BLOCK blok WITH FRAME.
  SELECT-OPTIONS:
        s_fakt   FOR so_rbkp-belnr,
        s_matdok FOR so_mseg-mblnr,
        s_god FOR so_mseg-gjahr.
SELECTION-SCREEN END OF BLOCK blok.

INITIALIZATION.
SET TITLEBAR '0100'.
START-OF-SELECTION.

  AT SELECTION-SCREEN on block blok.
      if s_fakt <> space and s_matdok <> space.
        MESSAGE 'Message1' TYPE 'E'.
      elseif s_fakt = space and s_matdok = space.
        MESSAGE 'Message2' TYPE 'E'.
      endif.
    ENDIF.

[Former Member]

Hi,

Try the below code. This will not get triggered until you wont execution button.

START-OF-SELECTION.

if s_fakt = space and s_matdok = space.

MESSAGE 'Message1' TYPE 'E'.

elseif s_fakt <> space and s_matdok <> space.

MESSAGE 'Message2' TYPE 'E'.

endif.

Shiva

[Former Member]

I tried your code, but if it happens the situation which produces an error, I jump out of program and I should stay at selection screen to make necessary changes.

[Former Member]

Raymond, your code solved my problem, but with START-OF-SELECTION command after AT SELECTION-SCREEN.

Tnx a lot.

[Former Member]

Hi,

You have placed your screen validation "AT SELECTION SCREEN on BLOCK" after "START-OF-SELECTION". And because of this whenver you press F8, your check is get executed and so you are getting the error.

Please place your screen validation before "START-OFSELECTION" as below and then try.

Hope this will be helpful

Regards,

S.Meganadhan

[RaymondGiuseppi]

Only perform the check when user wants to execute or submit the program, not when pressing F4 or even Enter, but in a selection-screen event, before START-OF-SELECTION which were program would terminate in error :

TABLES: SSCRFIELDS.
* ...
 AT SELECTION-SCREEN OB BLOCK b01.
    IF sscrfields-ucomm EQ 'ONLI' 
    OR sscrfields-ucomm EQ 'PRIN' 
    OR sscrfields-ucomm EQ 'SJOB'.
      IF s_fakt[] IS NOT INITIAL AND s_matdok IS NOT INITIAL.
        MESSAGE 'Message1' TYPE 'E'.
      ELSEIF s_fakt[] IS INITIAL and s_matdok[] IS INITIAL.
        MESSAGE 'Message2' TYPE 'E'.
      ENDIF.
    ENDIF.

(You could also always send the message, but using type 'E' for those function code and 'S' status for any other value.)

Regards,

Raymond