Fillable PDF Form - Custom JavaScript to throw alert and change text colour

[Mark Ben]

Urgent... Please help!

Good day all. Please i am in serious need of your help and this is very urgent. I need to get this out in 5 hours to my client.

So, there is this fillable pdf form i created for my client and the client is requesting that i create specific fields to ONLY accept specific correct answers. Also, if the answers are wrong, the field should retrun back an error by maybe highlighting red error background or anything that would show its an error. Besides, he doesnt  want a drop down menu or something.

For example: If the response to a text field is supposed to be "HOME" , if the user types in HOUSE, the form should return an error until the words HOME has been typed in. This is just a random scenario/example i just made.

Please can anybody help me out with a java script that can help me achieve this for my client. I really do not want to lose this job.

Thank you in advance.

[try67 · Accepted solution]

You can use something like this as the field's custom Validation script:

if (event.value && event.value!="HOME") {
	event.target.textColor = color.red;
	app.alert("INCORRECT ANSWER!");	
} else event.target.textColor = color.black;

[try67 · Accepted solution]

You can use something like this as the field's custom Validation script:

if (event.value && event.value!="HOME") {
	event.target.textColor = color.red;
	app.alert("INCORRECT ANSWER!");	
} else event.target.textColor = color.black;

[Mark Ben]

Thank you. But i get this error message. As shown in the screenshot.

[Bernd Alheit]

Remove " at the begin and end.

[JR Boulay]

Remove the quotes you added at the beginning and at the end of the script.

[Mark Ben]

Thanks. It accepted the javascript now. But it seem not to respond to the instruction. It still does not respond to the javascript. Maybe i am entering it in the wrong place. 

I selected the text field and clicked on the properties. Then i clicked on ACTION menu. 

Question:

1. What trigger do i select in this instance. I have tried almost all the options in there.

2. What action do i select? I have tried RUN A JAVASCRIPT

Like i said before, i have successfully entered the script and it shows Run A Javascript like in the screenshot below. But even if i type my name MARK in the text field, it accepts it and saves instead of rejecting it as an error. I want the word HOME only to be accepted. It should reject all other words and pop up as INCORRECT ANSWER as in the script.

[Bernd Alheit]

Add the script at Validate.

[JR Boulay]

You should read this, it's very useful: https://opensource.adobe.com/dc-acrobat-sdk-docs/library/jsapiref/JS_API_AcroJS.html#document-event-...

[Mark Ben]

Thanks for the resource. But, it even got me lost. Am just a newbie to this process.

[try67]

Just use the code I provided, and follow the instructions carefully. Don't add, delete or improvise anything, and you'll see that it works fine.

[Mark Ben]

Yes i did. But the field doesn't even respond or run the javascript. I am thinking i entered the code in the wrong place,  i really dont know.

[JR Boulay · Accepted solution]

Copy-paste the field in the attached PDF.

Beware that JavaScript is case sensitive, so "HOME" is not "Home" or "home".