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hogandeveloper
Beginner
Joined: 05 Aug 2008
Posts: 11
Topics: 10
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 Posted: Mon Sep 28, 2009 2:44 am Post subject: IF Then Else Assistance required |
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Hi All,
I have an unusual problem. The eventhough the FIELD-A is spaces it still goes to the IF part and not to the ELSE part. Please help me to sort this out.
| Code: |
IF FIELD-A NOT = SPACES OR LOW-VALUES
SET ALPH-NAME(12) TO TRUE
MOVE 'ACCOUNT TYPE:' TO ENT-ALPHA(12)
SET ALPH-NAME(13) TO TRUE
MOVE 'SAVINGS POCKET' TO ENT-ALPHA(13)
SET ALPH-NAME(14) TO TRUE
MOVE 'ACCOUNT NUMBER:' TO ENT-ALPHA(14)
SET STAT-DATA(15) TO TRUE
MOVE FIELD-A TO ENT-ALPHA(15)
ELSE
SET ALPH-NAME(12) TO TRUE
MOVE SPACES TO ENT-ALPHA(12)
SET ALPH-NAME(13) TO TRUE
MOVE SPACES TO ENT-ALPHA(13)
SET ALPH-NAME(14) TO TRUE
MOVE SPACES TO ENT-ALPHA(14)
SET ALPH-NAME(15) TO TRUE
MOVE SPACES TO ENT-ALPHA(15)
END-IF.
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Thanks,
HD |
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Anuj Dhawan
Intermediate
Joined: 19 Jul 2007
Posts: 298
Topics: 7
Location: Mumbai,India
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| Posted: Mon Sep 28, 2009 4:07 am Post subject: Re: assistance required |
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Please check the contentes of FIELD-A with HEX ON, you will come to know what's there.
Please learn to use BBcode that makes code rather readable.
_________________
Regards,
Anuj |
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acevedo
Beginner
Joined: 03 Dec 2002
Posts: 127
Topics: 0
Location: Europe
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| Posted: Mon Sep 28, 2009 6:41 am Post subject: Re: assistance required |
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If I'm not wrong:
| Code: | | IF FIELD-A NOT = SPACES OR LOW-VALUES |
is the same as
| Code: | | IF FIELD-A NOT = SPACES OR field-a not = LOW-VALUES |
so if FIELD-A = SPACES then meets the IF condition.
maybe, just maybe you ment:
| Code: | | IF FIELD-A NOT = SPACES AND LOW-VALUES |
HTH |
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dbzTHEdinosauer
Supermod
Joined: 20 Oct 2006
Posts: 1411
Topics: 26
Location: germany
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| Posted: Mon Sep 28, 2009 8:25 am Post subject: |
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acevedo,
very nicely posed.
_________________
Dick Brenholtz
American living in Varel, Germany |
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Anuj Dhawan
Intermediate
Joined: 19 Jul 2007
Posts: 298
Topics: 7
Location: Mumbai,India
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| Posted: Mon Sep 28, 2009 11:37 am Post subject: |
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acevedo is correct and just to extend a bit on what he has said. Actually, the code: | Code: | | IF FIELD-A NOT = SPACES OR LOW-VALUES |
will NOT work. While you can use "NOT =" with AND, you can not have it work with OR.
Your code: | Code: | | IF FIELD-A NOT = SPACES OR LOW-VALUES |
will expand to | Code: | IF FIELD-A NOT = SPACES OR
FIELD-A NOT = LOW-VALUES |
as acevedo has said and it will ALWAYS set TRUE with any value of FIELD-A. Reason: FIELD-A = SPACES is NOT = LOW-VALUES result is true on first condition and same for other condition etc...
_________________
Regards,
Anuj |
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Terry_Heinze
Supermod
Joined: 31 May 2004
Posts: 391
Topics: 4
Location: Richfield, MN, USA
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| Posted: Mon Sep 28, 2009 3:17 pm Post subject: |
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A good example of how using NOT can get you in trouble. Alternative methods of coding this: | Code: | IF FIELD-A = SPACE OR LOW-VALUE
<DO ONE THING>
ELSE
<DO SOMETHING ELSE>
END-IF |
or | Code: | EVALUATE FIELD-A
WHEN SPACE
WHEN LOW-VALUE
do something
WHEN OTHER
do another thing
END-EVALUATE |
_________________
....Terry |
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