Conditional Field Script

[Andrew5FEE]

Hi,

I have a field on an Adobe Acrobat Pro DC form that I want to show or hide based on the value of another field.

My Conditional Field is Field A.

My Controlling Field is Field B.

I only want to show Field A when Field B = X. 

Otherwise, Field A is hidden.

Is there some script I can write in my form to accomplish this? 

If so, can someone help me out with the code for the script?  And tell me exactly where I should copy/paste this script into the form?

I appreciate the help.

[George_Johnson]

The custom validation script for Field B could be:

// Custom Validation script for Field B

getField("Field A").display = event.value === "X" ? display.visible : display.hidden;

where "Field A" should be replaced with the exact field name of that field. Note that the script won't execute until the value of Field B changes, but once it does it will control the visiblity of Field A as expected. Enter the script on the Validate tab of the Field Properties dialog.

[Andrew5FEE]

Hi,

Thank you for the response.  I copied the code as you indicated but it did not hide the field.  I uploaded photos of my Field A and Field B.  Including the validation script for Field A.

I only want Field A to show if Field B = 1.  But Field A shows for any value of Field B.

Can you do me a favor and look over my code and tell me whether I have it correct.

Thanks again for the help.

Below are screen shots of Field A General Tab, Field A Validation Tab, and Field B General Tab.

Field A - General TabField A - Validation TabField B - General Tab

[Nesa Nurani]

Put the code in Field B.

[Andrew5FEE]

Hi, Yes this worked on my source document!  Thank you.

However, my PDF is being pushed out of a database program that merges the fields.  And it does not work on the PDF that is generated from my database program?

George_Johnson mentioned "the script won't execute until the value of Field B changes".  Perhaps this is the reason?  My database program is merging a static value into Field B.  But I would still like this static value to control the value in Field A.  Is this possible?

[George_Johnson]

If the data in the field is being populated outside of Acrobat/Reader (or some other PDF viewer that supports the scripting used) then it won't work.

[try67]

In that case you should move the code to be the calculation script of the field, and add the following code as a doc-level script (under Tools - JavaScript - Document JavaScripts):

this.calculateNow();

When you open the file it will force all the fields to re-calculate and your script will execute.

[Andrew5FEE]

Hi,

I did as suggested and it works great on the source document.  However, when I merge the form from my database program the problem still persists.  Field A is shown for all values of Field B.  Field A will not hide.

Below is a screen shot of how I entered the code.  Did I input it correctly?

Document Java Script

[try67]

Yes, that is correct. It should work...

[Thom Parker]

George's script is exactly the right way to implement the show/hide functionality for a text field.

You can find more details (more complete info) on showing and hiding any kind of field here: 

https://www.pdfscripting.com/public/Hiding-and-Showing-Form-Fields.cfm