I've read David Hayden's great post on MVC 3 Remote validation.
However there is presented what you should do to enable remote (javascript) validation. If the user has javascript disabled the post would still be made even if data is not valid. Therefore a server-side validation should occur.
How could we make this check as DRY (Don't Repeat Yourself) as possible? Of course, including the same check code in the post action as in the remote validation action (or just the same call) can work but I am wondering if a one-liner or something more elegant is available.
Perfectly acceptable answers include "no, it can't be done". :)