电子邮件TLD与.Net 4.5的jQuery验证EmailAddressAttribute

Question

I am currently using the EmailAddressAttribute validation class on a string property in my view model. The problem I am running into is that on the client-side, jQuery validation allows for emails in the following format, "someDude@test" however when the view model is submitted, the ModelState fails because EmailAddressAttribute does not accept addresses in that format.

The only workaround I can think of is either applying a regex on the server side or create a custom jQuery validation rule.

Is there a cleaner fix to this?

Answer 1

So I ended up taking jwats1980 advice and creating a new custom validation attribute that agrees with the jQuery validation. Below is my code:

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Net.Mail;
using System.Web.Mvc;

namespace SWCGPExternal.Attributes
{
    public class CustomEmailAddressAttribute : ValidationAttribute, IClientValidatable
    {
        public override bool IsValid(object value)
        {
            if (value == null)
                return false;

            try
            {
                MailAddress m = new MailAddress((string)value);
                return true;
            }
            catch (FormatException)
            {
                return false;
            }
        }

        public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
        {
            var clientValidationRule = new ModelClientValidationRule()
            {
                ErrorMessage = this.ErrorMessage,
                ValidationType = "email"
            };

            return new[] { clientValidationRule };
        }

    }
}