Built-in helper to parse User.Identity.Name into Domain\Username

Question

Is there any built-in utility or helper to parse HttpContext.Current.User.Identity.Name, e.g. domain\\user to get separately domain name if exists

Answer 1

Seems like a problem made to be solved by regular expressions:

public static class UserExtensions
{
    public static string GetDomain(this IIdentity identity)
    {
        Regex.Match(identity.Name, ".*\\\\").ToString()
    }

    public static string GetLogin(this IIdentity identity)
    {
        return Regex.Replace(identity.Name, ".*\\\\", "");
    }
}

Answer 2

System.Environment.UserDomainName gives you the domain name only

Similarly, System.Environment.UserName gives you the user name only