I have two different text boxes which merge into one, but secondary box can't update

[visual_worldview7751]

I'm trying to have space to enter information into two text fields ("First" and "Last") which then merges those into one field ("FullName") on a PDF document. I can get the information to load in when I first enter it, but then when I go back to try and change the original boxes the "FullName" box won't update.

Here is the JavaScript I've been using:

event.value = this.getField("First").value + " " + this.getField("Last").value;

Any help is appreciated!

[PDF Automation Station]

If your script is a calculation script in the FullName field, it should work.  If it doesn't work you probably have errors somewhere in the form.  Check the console.

[ls_rbls]

Hi @visual_worldview7751 ,

As @PDF Automation Station suggested, where exactly are you executing the script from?

[visual_worldview7751]

It is in the format tab with the category set to custom. Then it's just in the custom format script section.

[PDF Automation Station]

You misunderstand what a format script is.  It should be in the calculation tab under custom calculation script.

[JR Boulay]

PDF Automation Station is right, you should read this tuto: https://www.pdfscripting.com/public/PDF-Form-Scripting.cfm