Selection-Screen

[Former Member]

Hello Friends,

Can any body tell me the logic of the following query?

If there are 3 fields in the selection screen...if we enter wrong number in the first field it automatically block the remaining fields.

Thanx in Advance.

[abdul_hakim]

Use the below code..

SELECTION-SCREEN BEGIN OF BLOCK B1.

PARAMETERS: P1 TYPE I,

P2 TYPE I,

P3 TYPE I.

SELECTION-SCREEN END OF BLOCKB1.

AT SELECTION-SCREEN ON BLOCK B1.

IF P1 NE <SOME VALUE>.

<ERROR MESSAGE>

ENDIF.

[athavanraja]

Hi Abdul Hakim ,

using at-selection screen on BLOCK <block> will allow all the fields to be editable in side the block and other blocks will get grayed out.

Regards

Raja

[abdul_hakim]

Hi Raja,

I thought he is asking what u have said..

Nice letting me know about this..

Abdul

[athavanraja]

Try this code sample.

parameters: a(1),

b(1) ,

c(1) .

at selection-screen on a .

if a is initial .

message e398(00) with 'Enter value in A' .

endif .

Regards

Raja

[athavanraja]

the key here is if you issue the error message in

at selection-screen on <parameter name> .

that parameter alone will be available for editing and the others will be grayed out.

Regards

Raja

[Former Member]

just check this code...

REPORT  ZTEST1223.

TABLES: MARA.
PARAMETERS: P_MATNR LIKE MARA-MATNR,
            P_VBELN LIKE VBAK-VBELN,
            P_POSNR LIKE VBAP-POSNR.


AT SELECTION-SCREEN OUTPUT.
  IF NOT P_MATNR IS INITIAL.
    SELECT SINGLE MATNR
                  FROM MARA
                  INTO MARA-MATNR
                  WHERE MATNR = P_MATNR.
    IF SY-SUBRC <> 0.
      LOOP AT SCREEN.
        IF SCREEN-NAME = 'P_VBELN'.
          SCREEN-INPUT = 0.
          MODIFY SCREEN.
          CLEAR P_VBELN.
        ENDIF.
        IF SCREEN-NAME = 'P_POSNR'.
          SCREEN-INPUT = 0.
          MODIFY SCREEN.
          CLEAR P_POSNR.
        ENDIF.
      ENDLOOP.
    ENDI

[Former Member]

Hi Vijay Babu,

Thank you very much.

[athavanraja]

Hi jak,

though the method given by Vijay Babu works, i suggest that you should be using "At selection-screen on <param>"

parameters: a(1),

b(1) ,

c(1) .

at selection-screen on a .

check it against DB table and throw the error message here in this event.

Regards

Raja