https://legacy.forums.gravityhelp.com/topic/conditional-logic-based-on-form-field-empty-or-filled-in Gravity Support Forums Topic: Conditional logic based on form field empty or filled in? en-US Sat, 04 Apr 2026 09:19:10 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/conditional-logic-based-on-form-field-empty-or-filled-in#post-24797 Wed, 04 May 2011 17:04:47 +0000 David Smith 24797@https://legacy.forums.gravityhelp.com/ <p>Here is a link to documentation on all of our hooks:</p> <p><a href="http://www.gravityhelp.com/documentation/page/Developer_Docs" rel="nofollow">http://www.gravityhelp.com/documentation/page/Developer_Docs</a></p> <p>Here is a link to the specific hook that I think you might want to use to accomplish this:</p> <p><a href="http://www.gravityhelp.com/documentation/page/Gform_post_data" rel="nofollow">http://www.gravityhelp.com/documentation/page/Gform_post_data</a> </p> https://legacy.forums.gravityhelp.com/topic/conditional-logic-based-on-form-field-empty-or-filled-in#post-24794 Wed, 04 May 2011 16:20:40 +0000 bethfly 24794@https://legacy.forums.gravityhelp.com/ <p>Thanks, David. How would I learn about GF hooks and how to use them? I have no idea what that means, but I'd love to figure it out. Is there information on this site? </p> https://legacy.forums.gravityhelp.com/topic/conditional-logic-based-on-form-field-empty-or-filled-in#post-24792 Wed, 04 May 2011 16:04:19 +0000 David Smith 24792@https://legacy.forums.gravityhelp.com/ <p>Hi Beth,</p> <p>Conditional logic is limited to multiple choice, check box, and drop down fields. Unfortunately, I can not think of any way around the straggler comma without using GF hooks to customize the post body content. </p> https://legacy.forums.gravityhelp.com/topic/conditional-logic-based-on-form-field-empty-or-filled-in#post-24789 Wed, 04 May 2011 15:44:28 +0000 bethfly 24789@https://legacy.forums.gravityhelp.com/ <p>Hi. I'm wondering if it's possible to use conditional logic to display a form field base on whether another form field has data in it or not. I only see conditional logic options based on answers on multiple choice or check box kind of answers. </p> <p>Or maybe you can help me figure out how to do exactly what I want to do. I have fields for state and country, which are mandatory and are dropdown lists, and a field for city that is and optional text box. I am creating a blog post with the data, and I want to put a comma between city and state, if the city field is filled in. But not if that field is blank. I don't want a comma just hanging out there without a city in front of it.</p> <p>Another example is a field for URL. It's also optional. People can enter the URL of their blog. If it's filled in, I want my blog post to to have a label that says "Personal Blog:" before the URL. But I don't want "Personal Blog:" to print if there is no URL filled in.</p> <p>For the comma and the text, I was going to use hidden text fields with those characters prepopulated.</p> <p>Is there some other way to achieve the desired result?</p> <p>beth </p>