Validation for List of items

[Vamsi Gmail!]

Hi all,

           I wanted to do validations for list of items

I have multiple contact details.(The number of contact details is dynamic).

If user create three contact details

fisrt name ,last name ,telephone

I don't want to allow the user to enter special characters in first name and
last name

Is the current validation framework provides validations of this kind or
not.

If anything like that is there please provide the links for them

Regards
Vamsi