Requiring Field #2 to be completed if Field #1 has been filled in?

[PrintingServices]

Hi Folks,

We print NCR (carbonless forms) that clients often want numbered. On our Requisition we have two fields, one for the starting number and one for the end number. I don't want to make the two fields required because the forms aren't always numbered, but I do want to require a client to input the last number if they input a start number. Any ideas how to do this? Thank you.

[PDF Automation Station · Accepted solution]

If you enter this custom validation script in the first field, a message will popup after they enter a value and then set the focus to the 2nd field (I named it "EndPage" in the script).

if(event.value)
{
app.alert("Please input the ending page number.");
this.getField("EndPage").setFocus();
}

To make the field required if the first field contains a value enter this script as a custom calculation script in the EndPage field:

if(this.getField("StartPage").value)

{event.target.required=true}

else

{event.target.required=false}

[PrintingServices]

Hello, and thanks for the prompt reply!

I renamed my fields to StartPage and EndPage, but when I enter the script I get a Syntax Error...I've attached the screenshot. ( I have no experience with scripting, btw!)

[try67]

You copied a bunch of text that isn't a part of the code...

[PrintingServices]

So I did! I paid closer attention, and the scripts do exactly what I needed!!

[PDF Automation Station]

It's two different scripts for two different fields with "To make the field required if the first field contains a value enter this script as a custom calculation script in the EndPage field:" as my instructions in between.

[PrintingServices]

Thanks, yes, I figured it out finally. Thank you for your help, it works perfectly.

[try67]

You can use the following as the custom calculation script of the second field:

event.target.required = (this.getField("StartNumber").valueAsString!="");

Be aware that the required property is only validated when the file is submitted, though, not when it's saved, printed or emailed, or anything like that.

[PrintingServices]

Ah, OK, thanks. I need it to be visible always, as we print the Reqs and they travel with he Job bag. And thanks too for the prompt response!