topic Re: Field validations in Application Development and Automation Discussions

Field validations

Former Member — Sat, 18 Jul 2015 14:57:48 GMT

Hi all,

I want to differentiate between events 'At selection-screen' and 'At selection-screen on <field>'.

I am attaching a file here. In that I have used event 'At selection-screen on s_vbeln'. But the field s_ebeln is also getting validated.

I think only that s_vbeln should be validated as we are specifically mentioning it. But why s_ebeln is getting validated in the process.

Your help is appreciated.

Regards,

larry.

Re: Field validations

Former Member — Sat, 18 Jul 2015 17:23:40 GMT

Hi Larry,

Validation code should be after AT SELECTION-SCREEN ON S_VBELN.

Also if you wish stop further processing then you should write STOP.

Do hope that you understood.

----------------------------------------------------------

REPORT ZR_FIELD_VALIDATION.

DATA: V_EBELN TYPE EKKO-EBELN,
       V_VBELN TYPE VBAK-VBELN.

SELECT-OPTIONS: S_EBELN FOR V_EBELN,
                 S_VBELN FOR V_VBELN.

SELECT SINGLE EBELN FROM EKKO INTO V_EBELN WHERE EBELN IN S_EBELN.
   IF SY-SUBRC <> 0.
     MESSAGE 'PO DOES NOT EXIST' TYPE 'I'.
   ELSE.
     MESSAGE 'PO EXISTS' TYPE 'I'.
   ENDIF.

AT SELECTION-SCREEN ON S_VBELN.

SELECT SINGLE VBELN FROM VBAK INTO V_VBELN WHERE VBELN IN S_VBELN.
   IF SY-SUBRC <> 0.
     MESSAGE 'SALES ORDER DOES NOT EXIST' TYPE 'I'.
     STOP.
   ELSE.
     MESSAGE 'SALES ORDER EXISTS' TYPE 'I'.
   ENDIF.

Re: Field validations

Former Member — Sat, 18 Jul 2015 19:37:53 GMT

Hi Larry,

If you want to validate only s_vbeln then, under event At Selection-screen on s_vbeln you should keep only part of code which is validating the sales order number under the event At Selection-screen on s_vbeln.

In your code both sales order validation and purchase order validation are happening under the same event AT SELECTION-SCREEN ON S_VBELN.

You can write something like this

AT SELECTION-SCREEN ON S_EBELN.

SELECT SINGLE EBELN FROM EKKO INTO V_EBELN WHERE EBELN IN S_EBELN.

IF SY-SUBRC <> 0.

MESSAGE 'PO DOES NOT EXIST' TYPE 'I'.

ELSE.

MESSAGE 'PO EXISTS' TYPE 'I'.

ENDIF.

AT SELECTION-SCREEN ON S_VBELN.

SELECT SINGLE VBELN FROM VBAK INTO V_VBELN WHERE VBELN IN S_VBELN.

IF SY-SUBRC <> 0.

MESSAGE 'SALES ORDER DOES NOT EXIST' TYPE 'I'.

ELSE.

MESSAGE 'SALES ORDER EXISTS' TYPE 'I'.

ENDIF.

coming to the differences between At selection-screen' and 'At selection-screen on <field>...

Please check the below link

Selection Screen Events in ABAP - ABAP Development - SCN Wiki

Rewrad if helpful.

Regards,

Vasu Gunuputi.