If calculation

Your syntax is all wrong. It looks like you're trying to write code in Visual Basic. Acrobat only accepts JavaScript.

I have the form created, I cannot get my "if, else if" calculation to work.

Hi dianar08,

This tutorial on writing if statements in JavaScript (the scripting language Acrobat uses) should be helpful-
http://www.acrobatusers.com/tutorials/conditional-execution

Hope this helps,

Dimitri
WindJack Solutions
www.pdfscripting.com
www.windjack.com

I have the following calculation that doesn't work after exiting the form and returning:

this.getField("201").value = this.getField("200").value / this.getField("213").value;

201 is formated as a percentage
200 is formated to a number
213 is formatted to sum two nubmers

When I exit the form and go back in to enter 0 in the number fields the percentage calculation does not work anymore, and I get formatting error messages. Can you help?

If the value of field 213 is ever 0, then you have a problem. You have to catch this situation and deal with it before it becomes a problem. How you deal with it depends on what a value of 0 means in the context of the form.

Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]

The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]

Then most important JavaScript Development tool in Acrobat
[url=http://www.pdfscripting.com/public/34.cfm#JSIntro][b]The Console Window (Video tutorial)[/b][/url]
[url=http://www.acrobatusers.com/tutorials/2006/javascript_console][b]The Console Window(article)[/b][/url]

Hi there

I'm having great difficulty with a calculation. I've downloaded javascript resources from the above mentioned sites, but nothing has addressed the issue I have.

I have a form where individual items cost $3.50, but if the buyer wants multiples of 3, the price is then $10. So if they want 4 items the price will be $13.50 etc.

Any advice would be greatly appreciated.
Many thanks

Have you looked at the documentation for Mozilla [url=https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference]JavaScript 1.5 Reference[/url], from which Acrobat JavaScirpt is an extension and subset of.

You can use the modulo operator and "Math.floor()" method to obtain the multiples of 3 items purchased and the number of items in excess of a multiple of 3 items.

Thanks gkaiseril, I'll have a look there, and see what I can find (and create) :O)