MachForm Community Forums Topic: Logic for date field -> must be 18 years or older

MachForm Community Forums Topic: Logic for date field -> must be 18 years or older https://www.machform.com/forums/ MachForm Community Forums Topic: Logic for date field -> must be 18 years or older en Mon, 04 May 2026 01:39:00 +0000 AMurray on "Logic for date field -> must be 18 years or older" https://www.machform.com/forums/topic/logic-for-date-field-gt-must-be-18-years-or-older#post-18782 Sun, 21 Jul 2013 06:52:14 +0000 AMurray 18782@https://www.machform.com/forums/ I think you're using the logic incorrectly. In the logic settings, you choose the field you want to hide. Then you choose the logic condition to make it hidden (otherwise, shown) For example, the Age field (should be a number field type) and the logic setting is If AGE is LESS THAN 18 then HIDE the field. Try the above and see if its close to what you want. Could you then post a link to an example test form for us to try? BramNL on "Logic for date field -> must be 18 years or older" https://www.machform.com/forums/topic/logic-for-date-field-gt-must-be-18-years-or-older#post-18777 Sat, 20 Jul 2013 18:21:55 +0000 BramNL 18777@https://www.machform.com/forums/ Dear Support, I want to hide a field if the person's age is younger than 18 years. How can I do that? I tried "-18 year", which works for the default value, but is not accepted as an logic condition. Am I missing something? Thanks in advance, Bram