Required field after it is checked

[islandgirl23]

Hello,

I have a form with multiple check boxes.  Some of the check boxes have a text field that is required to be filled in if the box is checked off.  How can I make sure that the field is filled in if the box is checked? Right now, I checked off "required" in the common functions under General. But it's not making them fill in the box.

[gkaiseril]

The automatic processing of the "required" property only works for submission to web page or email service. Any other action will require you to write a custom JavaScript action to detect the fields not completed and report the issue to the user.

[islandgirl23]

Thank you.  Can you help me with the code?  I have Checkbox1 and Text1

On Saturday, March 23, 2019, 7:22:53 PM EDT, gkaiseril <forums_noreply@adobe.com> wrote:

Required field after it is checked

created by gkaiseril in PDF Forms - View the full discussion

The automatic processing of the "required" property only works for submission to web page or email service. Any other action will require you to write a custom JavaScript action to detect the fields not completed and report the issue to the user.

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[islandgirl23]

Hello,

I have not received a reply.  How would the code read?  I have Checkbox1 and Text1?  When checkbox1 is checked, I would like the user to get a notification that text1 needs to be filled in before completing the rest of the form, including if they attempt to print and/or save the form and i would like the form to stop working until text1 is filled in. 

[Lukas Engqvist]

This is the method I teach:
Put this code in the Checkbox on the Mose Up Event.

Replace "R1" with the checkbox, or name the button R1

Replace "R2" with the name of the field, or name the button R2

Note if you have another language version of acrobat confirm that the Options: Export Value is "Yes" if the checkbox is checked. Either you change the value to "Yes" or you replace the code in the sample.

var myBox = this.getField("R1");

var myField = this.getField("R2");

if (myBox.value === "Yes") {

    myField.required = true;      

}

if (myBox.value !== "Yes") {

    myField.required = false;      

}

[islandgirl23]

Sorry but I entered the incorrect information in my request.  I have radio buttons that are mutually exclusive.  Will that make a difference? I tried to copy and paste the Java but it does not work.

[gkaiseril]

The language being used in Acrobat PDF forms is JavaScript, not the compiled Java language.

It is not a good idea to just cut and paste code since JavaScript uses the basic 128 ASCII character set.

Have you opened the JavaScript console to see if there are any reported errors?

The field with focus should be accessed using the event object and not the file object.

If you have multiple check boxes or radio buttons, then you. need to provide the code for each button in the exclusionary group.

Radio buttons and check boxes are very similar except that a check box can be unchecked by clicking on it a second time. Once a radio button has been selected it cannot be changed except by checking another radio button in the group or using JavaScript code to rest the field or group.

Since a comparison to the desired value of the check box or radio button will either be true or false as will be the required property, one can set the required property based on the result of the comparison to the value of the check box or radio button. The script can be:

this.getField("Text1").required = (this.getField(event.target.name).value == "Yes");

By using the event target's name, one does not need to code in the check box's or radio button's name. That means the only value changing in the name of text field whose required property is being changed to the result of the comparison.

The JavaScript console can be opened with the <Ctrl> + "J" key combination or in the "Prepare Form" tool under "More".

JavaScript is case sensitive and if a field has null value, then that field cannot be found.