使用Microsoft.Practices.EnterpriseLibrary.Validation.dll验证类成员

public class MyClass

{

    [StringLengthValidator(1, 32, MessageTemplate = "MyValue is too long", Ruleset = "MyRules")]
    [MyValidator(MessageTemplate="MyValue is invalid", Ruleset = "MyRules")]

    public string MyValue {get;set;}

    public ValidationResults Validate()
    {
            Validator<MyClass> myValidator = ValidationFactory.CreateValidator<MyClass>("MyRules");
            ValidationResults custResults = myValidator.Validate(this);
            return custResults;
    }
}

    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field)]
    public class MyValidatorAttribute : ValidatorAttribute
    {
        protected override Validator DoCreateValidator(Type targetType)
        {
            return new MyValidator(Tag);
        }
    }
    
    public class MyValidator:Validator<string>
    {
        public MyValidator(string tag) : base(string.Empty, tag) { }
        
        private bool IsValid(string text)
        {
            return false;
        }
        
        protected override void DoValidate(string objectToValidate, object currentTarget, string key, ValidationResults validationResults)
        {
            if (string.IsNullOrEmpty(objectToValidate))
                return;
            if (IsValid(objectToValidate))//cc is found
            {
                LogValidationResult(validationResults, GetMessage(objectToValidate,key), currentTarget, key);
            }
        }

        protected override string DefaultMessageTemplate
        {
            get { return "Validation failed"; }
        }
    }