asp.net-mvc-4 - データ注釈のクリア

Question

DataAnnotations派生クラスでクリアできますか?

public class User
{
   [Required(ErrorMessageResourceType = typeof (UserMessages), ErrorMessageResourceName = "BIRTHDATE_REQUIRED")]
    public virtual DateTime BirthDate { get; set; }
}

派生クラス

public class UserModel : User
{
   //i dont want data annotations to be used here
   [Clear] - something like this
   public override DateTime BirthDate{ get; set; }
}