Handler or function

[Mark Schonewille]

Hi Liam,

Whether you should use a function rather than your handler really  
depends on what you want. If you really need to display intermediate  
values, you might want to use the following relatively short handler

on fCal
   set the numberFormat to "#0.00"
   put (fld "Adult" * fld "aPrice") into fld "AdultPrice"
   put (fld "Child" * fld "cPrice") into fld "ChildPrice"
   put (fld "Other" * fld "oPrice") into fld "AdultPrice"
   put (fld "Adult" * fld "aPrice") + (fld "Child" * fld "cPrice") ¬
   + (fld "Other" * fld "oPrice") into field "Total"
end fCal

but if that's not necessary, the first and the last line of above  
handler would be sufficient

on fCal
    set the numberFormat to "#0.00"
    put (fld "Adult" * fld "aPrice") + (fld "Child" * fld "cPrice") ¬
    + (fld "Other" * fld "oPrice") into field "Total"
end fCal

and if you need to do this really, really often and you get tired of  
typing the syntax all the time, I would try to use shorter variable  
names together with this function:

function gCalc  
theaPrice,thecPrice,theoPrice,theChildNumber,theAdultNumber,theOtherNumb 
er
   set the numberFormat to "#0.00"
   return (theAdultNumber * theaPrice) + (theChildNumber * thecPrice)  
+ (theOtherNumber * theoPrice)
end gCalc

If you are going to repeat these calculations hundreds of times, you  
really don't want to update the fields all the time, because it  
reduces performance. Otherwise, you could use your original handler  
as well.

Best,

Mark

--

Economy-x-Talk
Consultancy and Software Engineering
http://economy-x-talk.com
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Op 6-aug-2006, om 20:45 heeft Liam Lambert het volgende geschreven:

> Sorry Typo
> Should have said
> Hi all I have am using this handler to calculate different prices
> for children adults and others
> The aPrice cPrice and the oPrice are different prices selected from a
> fld with different prices in it
> the handler works fine my question is should I do  this with a  
> function
> or is there a better way to do this
>
>
> on fCal
>    set the numberFormat to "#0.00" -- dollar format
>    put field "aPrice" into theaPrice -- the selected adult price
>    Put field "cPrice" into thecPrice -- the selected child price
>    put fld "oPrice" into theoPrice ---other selected price
>    put field "child" into theChildNumber --the number of children
>    put field "adult" into theAdultNumber --the number of adults
>    put fld "other" into theOtherNumber ---the number of other
>
>    put (theChildNumber * thecPrice) into field "Childprice"-- * the
> number of children by the price
>    put (theAdultNumber * theaPrice) into field "Adultprice"-- * the
> number of Adults by the price
>    put (theOtherNumber * theoPrice) into fld "Otherprice"
>
>    put field "Childprice" into theChildprice
>    put field "Adultprice" into theAdultprice
>    put fld "Otherprice" into theOtherPrice
>    put theAdultprice + theChildprice + theotherPrice into field  
> "Total"
> end fCal
>
> Thank's Liam
>
>
> IRELAND
> liamlambert at mac.com
>
>
>
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