I am upgrading a DNN site from version 5.06.00 to version 7.03.02. I followed the recommended upgrade path, and worked out all of the kinks with the custom modules. The registration form has a custom boolean field, which is required to be set to TRUE. This used to validate correctly pre-upgrade, but now it is not post-upgrade. The user can submit the form without selecting the "TRUE" radio button.
The custom field is displaying properly. The required asterisk is also displaying. The DOM even has an error message element with the correct custom required message:
<span class='dnnFormMessage dnnFormError'>[required message]</span>
However, this field is set to "display:none" by default and never displays as inline like the other error message elements.
I am not a DNN expert and I did not create this site. I am upgrading it for a client and don't know a ton about how these custom fields all work. I see the custom field enabled in Admin > Site Settings > User Account Settings > Profile Settings. I also see a file called "Profile.ascx.Portal-0.resx" that contains the custom field's main text, help text, and required text. It lives in DesktopModules\Admin\Security\App_LocalResources. I don't know what else I would need to configure or check that would be different from version 5.6 to 7.3.
Thanks for your help!