Conditional Required Fields

[sw777]

I have a form that will be submitted via email.

I have a number of Required Fields on the form that are validated automatically prior to submission, but there is one section that's a bit tricky and may require some JavaScript that I haven't been able to work out despite searching these forums.

There are 3 checkboxes on my form that work a bit like radio buttons, but not.

Checkboxes "A" and "B" can be selected independently or together, but checkbox "C" can only be selected on it's own.

I have a JavaScript to automatically de-select both "A" and "B" if checkbox "C" is selected.

I have another JavaScript that automatically de-selects "C" if either "A" or "B" (or both) are selected.

This requirement prevents me from making any of these checkboxes "Required Fields"

But I need to verify that at least one of the three boxes is selected before the form can be submitted.

Any help would be greatly appreciated.

Thanks, Steve

[try67]

You'll need to perform this validation yourself, using a script. Basically it will just need to look into the values of all three fields and make sure that at least one of them is ticked.

[sw777]

I'm still a bit of a novice with JavaScript. Learning as I go. Would you mind giving a bit more info on how to do that?

[try67 · Accepted solution]

The most basic code would be something like this:

if (this.getField("A").value=="Off" && this.getField("B").value=="Off" && this.getField("C").value=="Off") {
    app.alert("You must tick either \"A\", \"B\" or \"C\".",1);
} else this.submitForm({cURL: "mailto:me@email.com"});

[sw777]

Thanks. Will give it a go.

[sw777]

Works perfect. Thanks.

[christinee31926301]

I've tried this code and it works great. I get a popup box if one of my check boxes is not selected, but is there a way to make it "required" to check one of the check boxes so that the PDF can't be saved unless one of the check boxes is selected?

[try67]

You can't prevent the file from being saved. You can display an error message or even force the saved file to be blank, though.

[christinee31926301]

Thanks for the info and for replying so quickly.

[Test Screen Name]

No, saving is nothing to do with submitting, and a script can't stop saving. Thank goodness.

[F0xracer69]

I have check boxes for "Business" or "Residential". I want checking business box to then require the EIN (employer identification number) field to be populated, but not required if residential box is checked.  If residential box is checked, I want the fields "D.O.B" and Driver License #" to be required;  but not enforced if business is checked.

Advice?

Thank you.

P.S. Im using acrobat pro DC - where can script be added? couldn't find action area under field properties.