ASP.NET MVC Web API data annotation regular expression for email

问题

Using [RegularExpression(@"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$")] attribute never validates an email property of my model. I'm new to regular expressions so I can't figure out what is the problem. Little help?

回答1:

Look at this article: How To Validate Email Address With Regular Expression. The guy not only providing you with the regular expression, but also explaining step by step what it means. Not only its useful as an expression, but you can also learn a thing or two from this article.

Hope this helps. Please let me know if not.

回答2:

[Required]
[Display(Name = "Email Address")]
[EmailAddress]
public string email { get; set; }

Something like this should solve you problem. The email validation has been build in 4.5 check out this msdn documentation

回答3:

Did you check the ModelState property for validation errors? Look at the example at the bottom of this page:

http://blogs.msdn.com/b/youssefm/archive/2012/06/28/error-handling-in-asp-net-webapi.aspx

for a way of sending back error messages to the client when validation fails.

来源：https://stackoverflow.com/questions/15612603/asp-net-mvc-web-api-data-annotation-regular-expression-for-email