I have a "Hyperlink Control" and an "Attachment Control" in Nintex Form 2013.
I'm trying to use a rule to validate this to cannot be empty,
I cannot use SharePoint validations, because these Fields are hidden in the form based on other rules.
Am I missing something or it shouldn't work at all?
Thanks for your reply, I haven't ry Vadim's solution, because the lates Nintex form Version support Validation of Attachment Controls, but it's just won't work the right way if i need to hide this Control until another rule happened.
This works pretty good with other controls just not "Hyperlink" and "Attachment" Control.
If you put those controls inside a panel, you can then apply your rules to hiding the panel. The rules would apply as normal and you should be able to accomplish this with no issues.