determine Username ?

[kcwallace]

It is my understanding that the below code is the best way to determine a users network name in an ASP.Net page. However when I run it I get an empty string. Can someone help?

 

Imports System.Security
Imports System.Security.Principal.WindowsPrincipal

Dim logon_str As String = HttpContext.Current.User.Identity.Name
Dim str_int As Integer
str_int = logon_str.IndexOf("\")'for some reason it this forum is dropping the "back slash".  It is there in the real code
logon_name = HttpContext.Current.User.Identity.Name.Substring(str_int + 1)

[PlausiblyDamp]

Does your website require the user to be logged on? If not then they will not have a user name.

[scalf]

Yes, for that you need to check IIS to see if anonymous connections are allowed, if so you should disable it and allow only Windows Authentication.

[kcwallace]

Thank you for your help