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

you have to override TypeId property http://www.paraesthesia.com/archive/2010/03/02/the-importance-of-typeid-in-asp.net-mvc-dataannotations-validation-attributes.aspx

Answer 2

If you want to implement AllowMultiple=true on your own attribute then first override TypeID and next for solution to JQuery look at the article on code project here