client side and server side validation asp.net MVC 4 -

i'm working asp.net mvc4 form validations.

i have done client side validation javascript , server side validation model , data annotations.

the problem when submit form testing, client side validations errors messages (javascript) , server side validations messages (data annotations) @ same time.

does 1 know how can forse data annotations (server side) work when javascript desactivated on client side?