Browse lookup

[Keith F Weatherhead]

John Esak wrote:

> 
>>-----Original Message-----
>>From: Kenneth Brody [mailto:kenbrody at bestweb.net]
>>Sent: Friday, December 17, 2004 9:40 AM
>>To: john at valar.com
>>Cc: filePro mailing list
>>Subject: Re: Browse lookup
>>
>>
>>John Esak wrote:
>>
>>>>> 97  -------   -   -   -   -   -   -   -   -   -   -   -   -
>>>>
>>>>-   -   -   -
>>>>
>>>>>        —„ If:         @sk="BRKY" or  @bk = "X"
>>>>>       Then:         GOTO is_exit
>>>>
>>>>This will check for breaking out or pressing 'X', but it doesn't check
>>>>for the lookup having failed because there were no records.
>>
>>Simply add
>>
>>>>"or not pros".  (Actually, in that case, the check for BRKY
>>
>>is redundant.)
>>
>>>Just curious, why is the test for @BRKY redundant here??
>>
>>[...]
>>
>>Because if you press BREAK in the browse lookup window, it will cause the
>>lookup to fail, making the BRKY test redundant once you add the "not pros"
>>test to handle the "there are no records" situation.
>>
>>--
>>+-------------------------+--------------------+------------------
>>-----------+
>>| Kenneth J. Brody        | www.hvcomputer.com |
> 
> 
> Ah, I never understood it that way. I always put the @sk eq "BRKY" test
> above the "no record" test. I don't know why... In any case, I hear what you
> are saying about it causing the lookup to break.  In either case, I consider
> the two situations completely different and put the @sk test first so that
> both situations can be handled independently.

While I understood Kens point, like you I always use the two lines 
to handle them seperately.  I suppose you could have a error handler 
for failed browse lookups and at that point check if you got there 
with: @sk eq "BRKY", rather than a "no find" condition.  In most 
cases, you may very well have to handle the situations differently 
anyway, just which method works better for your style of programming.

Regards,
Keith

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-- 
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Keith F. Weatherhead                   keithw at ddltd.com

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