mvc [DataType(DataType.EmailAddress) no validation

Question

I'm using this code on an email field:

    [Required]
    [DataType(DataType.EmailAddress)]
    [Display(Name = "Email address")]
    public string Email { get; set; }

[DataType(DataType.EmailAddress)] does not work (validation does not occur no at a server not on the client side).

I am not sure if I should implement myself a Custom Attribute or I can use one included with MVC 3.

Could you please suggest me a solution for creating a custom attribute in case I need to.

I read also about some additional extensions, example http://nuget.org/packages/DataAnnotationsExtensions.MVC3

Would you suggest it to me?

Answer 1

You could use the usual DataAnnotations library by just using [EmailAddress]

using System.ComponentModel.DataAnnotations;
    [Required]
    [EmailAddress]
    public String Email { get; set; }

Also just for reference, here's the regular expression version of this validation:

    [RegularExpression(@"^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-‌​]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$", ErrorMessage = "Email is not valid")]
    public String Email {get; set;}

Best of luck!