Configure Microsoft.AspNet.Identity to allow email address as username

Question

I\'m in the process of creating a new application and started out using EF6-rc1, Microsoft.AspNet.Identity.Core 1.0.0-rc1, Microsoft.AspNet.Identity.EntityFramework 1.0.0-rc

Answer 1

For people on AspNet.Identity.Core 2.1 and up, these validators in the UserManager are readonly. Email addresses as usernames are allowed by default but if you need further customisation of the characters in your usernames, you can do so in Startup.cs like this:

public void ConfigureServices(IServiceCollection services)
{
    services.AddIdentity(options => {
        options.User.AllowedUserNameCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-._@+/";
    });

    // ... etc
}

(I needed a '/' for legacy reasons.)