I have added some validation to the default registration form template in the following way:
Title="<%$ Resources:Labels, FirstName %>" CssClass="sfregisterField sfregisterFirstName" WrapperTag="li">
For some unknown reason, there is no validation happening for the above field when the form is submitted. The only validation happening is for email, username and password.
I later added validation group to each of the required fields in the form. Still no validation happening for the rest of the fields e.g. First name, Last name etc..
Any idea why this happening??
If you for example have the following custom field and you want to validate it: