验证texbox事件变化的模型

I have a model class

我有一个模型课

public class ActorPhoneModel
    {
        public int PhoneTypeTd { get; set; }

        public string PhoneType { get; set; }

        [StringLength(30, ErrorMessageResourceType = typeof(ErrorMessage),
            ErrorMessageResourceName = "phone_number_you_entered_must_be_at_least_five_characters", ErrorMessage = "", MinimumLength = 5)]

        [RegularExpression(@"/^[ 0-9()+-]*$/", ErrorMessageResourceType = typeof(ErrorMessage),
            ErrorMessageResourceName = "phone_number_is_invalid", ErrorMessage = "")]
        public string PhoneNumber { get; set; }
    }
public class A