Does anybody know that if I integrate with MVC, does the toolkit support unobstrusive validation? Or partially suport the functionality?

Yes it does, but only a very limited subset of validators can be translated to client-side rules. These are:

*NotNull/NotEmpty
*Matches (regex)
*InclusiveBetween (range)
*CreditCard
*Email
*EqualTo (cross-property equality comparison)
*Length

(more information is on this page in the docs)

Jeremy