How to calculate the value of a field based on another field

Question

I am creating a fairly basic registration form. Users can select multiple sessions throughout the week. What I need to do is allow them to select their sessions, and then have the form display the total cost. In Excel I can have the users enter an "X" in the appropriate cell, then create another cell that says "if A1 = "X", then A2 = $500. I then hide A2 and have another cell display the total of A2, B2, C2, etc.

In Adobe, it seems that I can have a text field with the value of $500 for each session which the user can select, and then have a total field that addes up all the session fields to display the total cost. This works, but is not pretty to look at. It would be better/nicer to have a check box for each session and then have a total field that displayed the amount based on the number of check boxes that were checked.

It seems like this is something that has been done before, but I can't find a good solution. Any and all help is appreciated!

try67 · Accepted Answer

It's very easily done, and you don't need to use hidden text fields for the amounts.

Just set the export value of each check-box to the corresponding amount and then use the built-in Sum option under the Calculate tab of your total text field to add the values of all the fields. Only those that are ticked will be included in the sum.

Thom Parker · Answer

Read this article:https://www.pdfscripting.com/public/How-to-Write-a-Basic-PDF-Calculation-Script.cfm

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