if dropdown says specific text, then checkbox is marked

Forum|Forum|5 months ago
November 7, 2025
1 reply
148 views

I'm trying to make it where if a dropdown of US states triggers a check box. I want 49 states to trigger this and only one (KY), to not trigger the text box. Is this possible?

Dropdown list name: TitleState

Check box name: OOS

Correct answer Nesa Nurani

In the other thread a regular expression was used to test for a an empty field value. You're current request isn't really all that different. It's just the test that needs to be adjusted. So you want the text "KY" to uncheck, and all other values to check.

Here's the code to put in the custom "Validate" script on the dropdown:

**Edited to correct coding

this.getField("OOS").checkThisBox(0, event.value != "KY");

Just a small mix-up! The 0 goes first in the function. So it should be:
this.getField("OOS").checkThisBox(0, event.value != "KY");

Meenakshi_Negi

Legend

Hi symone_1736,

Thank you for reaching out.

Please try the suggestion provided and correct the marked in the following community thread with a similar question: https://adobe.ly/4hR2xt5.

Hope that helps.

Thanks,

Meenakshi

S

symone_1736Author

Inspiring

That community post was also me. The difference here is that I need specific text to trigger the checkbox. I need 49 states to trigger the check box to be checked; I need 1 state to ensure that this checkbox remains unchecked.

Thom Parker

Community Expert

In the other thread a regular expression was used to test for a an empty field value. You're current request isn't really all that different. It's just the test that needs to be adjusted. So you want the text "KY" to uncheck, and all other values to check.

Here's the code to put in the custom "Validate" script on the dropdown:

**Edited to correct coding

this.getField("OOS").checkThisBox(0, event.value != "KY");

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often

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