Answer / sapna

Chain and End chain
In PAI if you want to validate group of fields put in
chain and End chain statement .


You can declare fields in the chain enchain .


CHAIN.
FIELD chk_ABC.
FIELD chk_DEF.
FIELD chk_GHI.
FIELD CHK-JKL.
MODULE CHK_screenfields.
ENDCHAIN.


MODULE CHK_screenfields INPUT.
CLEAR okcode.
okcode = sy-ucomm.
CASE okcode.
WHEN 'ENTER' OR 'EXECUTE'.

IF chk_ABC IS INITIAL AND chk_DEF IS INITIAL AND CHK_GHI
IS INITIAL .
MESSAGE e000(zo_spa) WITH text-017. " Enter VALUES'
ELSE.
.....
ENDIF.
ENDIF.

ENDMODULE. " modify_screenfields INPUT


Regards,
SAPNA

Answer / palash mazumder

IN PAI IF YOU WANT VALIDATE A GROUP OF FIELDS THEN CHAIN
ENDCHAIN BLOCK IS USED.

SYNTAX IS.
IN FLOW LOGIC

CHAIN.
FIELD NUM1.
FIELD NUM2.
MODULE USER_COMMAND_0100.
ENDCHAIN.

IN ABAP PROGRAM WRITE THE FOLLOWING CODE.
MODULE USER_COMMAND_0100 INPUT.
CLEAR okcode.
okcode = sy-ucomm.
CASE okcode.
WHEN 'ENTER' OR 'EXECUTE'.

IF NUM1 IS INITIAL OR NUM2 IS INITIAL .
MESSAGE e398(00) WITH 'PLEASE FILL THE FIELDS'. " Enter VALUES'
ELSE.
.....
ENDIF.
ENDIF.

ENDMODULE.

NUM1 AND NUM2 ARE INPUT FIELD NAME IN SCREEN 0100

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