https://legacy.forums.gravityhelp.com/topic/how-to-do-custom-field Gravity Support Forums Topic: How to do custom field? en-US Mon, 20 Apr 2026 06:50:54 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/how-to-do-custom-field#post-44826 Thu, 22 Dec 2011 17:57:31 +0000 Carl Hancock 44826@https://legacy.forums.gravityhelp.com/ <p>What would probably be better than making your own custom form field in Gravity Forms (which is certainly possible, but is a more involved customization) is use custom jQuery to automatically populate part of the Phone field based on what they enter into the City field. </p> <p>You would do this by writing custom jQuery that you output on the same page as the form. I don't have any example code for you and as this is a customization you'd have to write the code for it. </p> https://legacy.forums.gravityhelp.com/topic/how-to-do-custom-field#post-44793 Thu, 22 Dec 2011 09:12:40 +0000 eeadmin 44793@https://legacy.forums.gravityhelp.com/ <p>What I need to do is next:</p> <p>A customer would like that when a user enter his city, I will pre-populate the phone number field with the city prefix...</p> <p>How do I create a custom field for that? I understand that I can add a JS to it to make the AJAX call but how to create a joined field? </p>