(no subject)

[David Morrison - Corporate]

John,

How about using a SILENT field, and doing the calculation in the EDIT procedure for that field?

David Morrison
McBride Electric

-----Original Message-----
From: Chris Sharman [mailto:chris.sharman@ccagroup.co.uk]
Sent: Thursday, November 21, 2002 1:26 AM
To: John Pearce; powerh-l@lists.swau.edu
Subject: RE: (no subject)



> There's a "what if" Quick screen in the payroll system that I've
> been asked
> to change so it automatically does a re-calculate whenever any of the
> fields is changed.  At the moment, the user enters TAX to cause the
> re-calculation.  There are about 18 fields that the user can change --
> exemptions, marital status, deductions, etc.
>
> Is there a better solution to have the re-calculation occur automatically
> than writing eighteen sets of "Procedure Output <fieldnane>   Do ReCalc"?

I'd put that kind of functionality in the process procedure, rather than
output: it's something you want to do on completing field changes, not on
display.
If you put it in output, you're in an infinitely recursive loop, aren't you
?
Your recalculation will presumably do a number of displays to show results,
invoking a number of output procedures ...

Presumably "TAX" invokes a designer procedure ?
How about binding a keystroke to the procedure, so that they can use that
instead of going back to the action prompt and entering TAX<return> ?
Otherwise I don't think there's any way to avoid having one trigger
procedure per field. On the other hand, it's not that onerous:

procedure process NAME
 begin
 do internal recalc
 end

Regards,
Chris Sharman



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