Custom validation attribute with multiple instances problem

Question

I'm using tha namespace System.ComponentModel.DataAnnotations in C# 4 to implement my own validation attribute and it looks like this

[AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
public sealed class MyCustomValidator : ValidationAttribute {
    private String Property1 { get; set; }
    private String Property2 { get; set; }

    public ValeTaxiSituacaoRequired(String property1, String property2) {
        Property1 = property1;
        Property2 = property2;
    }

    public override bool IsValid(object value) {
        //validation logic
    }

}

I wanna use this attribute as below

[MyCustomValidator("Name", "Job")]
[MyCustomValidator("Name", "Email")]
[MyCustomValidator("Name", "Job")]
public class Employe {
}

The problem is that just one validation is perfomed. How can I execute all the validations (using asp.net mvc 2)?

Answer 1

你必须覆盖TypeId属性http://www.paraesthesia.com/archive/2010/03/02/the-importance-of-typeid-in-asp.net-mvc-dataannotations-validation-attributes.aspx

Answer 2

如果你想实现你自己的属性=的AllowMultiple true，那么第一个覆盖TYPEID和明年的解决方案的JQuery看看代码项目的文章在这里

Answer 3

Take a look at FluentValidation . It allows you to separate your validation from the classes being validated so that you can call your validation logic at any time, on the server or the client.

It allows you to add as many rules of any complexity to a class, without cluttering it with attributes.