https://legacy.forums.gravityhelp.com/topic/field-validation-1 Gravity Support Forums Topic: Field Validation en-US Sun, 19 Apr 2026 23:23:09 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/field-validation-1#post-55466 Tue, 17 Apr 2012 09:30:30 +0000 Rob Harrell 55466@https://legacy.forums.gravityhelp.com/ <p>No problem, glad to help. </p> https://legacy.forums.gravityhelp.com/topic/field-validation-1#post-55429 Mon, 16 Apr 2012 19:23:18 +0000 Mattingly Graphics 55429@https://legacy.forums.gravityhelp.com/ <p>Thanks! </p> https://legacy.forums.gravityhelp.com/topic/field-validation-1#post-55378 Mon, 16 Apr 2012 12:57:32 +0000 Rob Harrell 55378@https://legacy.forums.gravityhelp.com/ <p>You could try using this hook for custom validation:</p> <p><a href="http://www.gravityhelp.com/documentation/page/Using_the_Gravity_Forms_%22gform_validation%22_Hook" rel="nofollow">http://www.gravityhelp.com/documentation/page/Using_the_Gravity_Forms_%22gform_validation%22_Hook</a></p> <p>However, your work around would work too. </p> https://legacy.forums.gravityhelp.com/topic/field-validation-1#post-55374 Mon, 16 Apr 2012 12:41:07 +0000 Mattingly Graphics 55374@https://legacy.forums.gravityhelp.com/ <p>For the time being I just set conditional logic on the submit button, to "Starts with... ABC-12" Not sure if there's any other "cooler" options? </p> https://legacy.forums.gravityhelp.com/topic/field-validation-1#post-55372 Mon, 16 Apr 2012 12:13:47 +0000 Mattingly Graphics 55372@https://legacy.forums.gravityhelp.com/ <p>Creating an eccomerce site for a client. They have 2 products which can only be purchased by people who have attended their training classes. When they attend, they are given a paper with a VERY generic serial number... lets say ABC-12345678. Ive used an input mask to hide the cart66 add to cart button, so that someone has to enter at least ABC-12 and then the cart button appears. This doesn't have to be secure, just enough to hassle people who don't have a real serial number.<br /> My question is, is there a way to validate the first 3 to 5 characters in the serial... So that someone must input ABC-12345678 and something like DEF-98765432 will not work? </p>