https://legacy.forums.gravityhelp.com/topic/custom-field-validation Gravity Support Forums Topic: Custom field validation en-US Mon, 20 Apr 2026 06:48:09 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/custom-field-validation#post-14379 Tue, 14 Dec 2010 12:42:05 +0000 Carl Hancock 14379@https://legacy.forums.gravityhelp.com/ <p>All custom code that interacts with Gravity Forms via API hooks would go in your themes functions.php file. That forum post does have an example of using the gform_validation hook to create custom validation on a field so that is what you would need to use, although customized for your actual needs. </p> https://legacy.forums.gravityhelp.com/topic/custom-field-validation#post-14356 Tue, 14 Dec 2010 04:16:43 +0000 wouterbruijning 14356@https://legacy.forums.gravityhelp.com/ <p>I'm trying to create a field with custom validation. The input must be validated against a array with data. For example, it must start with: array('1428','2159','2241','2242');</p> <p>I have already searched the docs and faq, but was unable to find how to create his. I have found the following topic on this forum:</p> <p><a href="http://forum.gravityhelp.com/topic/custom-field-that-supports-validation-by-regular-expressions" rel="nofollow">http://forum.gravityhelp.com/topic/custom-field-that-supports-validation-by-regular-expressions</a></p> <p>But I'm unable to find out where I need to put that code. </p>