Past and future date validation

MAR 2013

Sometimes you want to make sure that people filling in a membership form or an entry form can only enter dates in the future (perhaps the expiry date of an insurance policy), or only dates in the past (perhaps a birth date, or the date they joined an organisation).

This is so common that we added a tickbox to ensure this kind of validation to all date controls on our forms:

That's it - once ticked, if someone attempts to put in a date in the future the system will (gently) remind them that the date must be in the past.