How do you make a required checkbox field stop a form submitting if not checked.

Question

Hello,
I have a form which needs people to accept two checkboxes before the form will submit upon clicking a button.
I am using Acrobat X Pro.
The form does not submit when a required text field is empty but when the checkboxes are empty it still tries to submit.
How can I work around this?
Thanks.

Answer 1

You can't do it directly, but there's a work-around. Create a (hidden) text field and set it as required. As the text field's custom calculation script enter the following code:
event.value = this.getField("Check Box1").value=="Off" ? "" : this.getField("Check Box1").value;
This will prevent the document from being submitted if "Check Box1" is not ticked. The downside is that the check-box won't be highlighted in red when the validation fails, but at least the file won't be submitted partially filled-in.
Alternatively, you can write you own validation script, which can provide a full report of which fields still need to be filled-in before submitting the file.