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Where we use Chain and End chain?
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Answer Posted / 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
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