Remove domain information from login id in C#

Question

I would like to remove the domain/computer information from a login id in C#. So, I would like to make either \"Domain\\me\" or \"Domain\\me\" just \"me\". I could always chec

Answer 1

This works for both valid domain logins:

var regex = @"^(.*\\)?([^\@]*)(@.*)?$";
var user = Regex.Replace("domain\\user", regex, "$2", RegexOptions.None);
user = Regex.Replace("user@domain.com", regex, "$2", RegexOptions.None);

Answer 2

Piggy backing on Derek Smalls Answer...

Regex.Replace(User.Identity.Name,@"^(?<domain>.*)\\(?<username>.*)|(?<username>[^\@]*)@(?<domain>.*)?$", "${username}", RegexOptions.None)

worked for me.