Informing ASP.NET website about the currently logged-in user

[Arroneype]

I'm new to ASP.NET and have been trying to solve this for awhile now.I've came across this blog, and everything looks to be good, except one thing: the below code always evaluates to false in \[code\]HttpContext.Current.User.Identity is FormsIdentity\[/code\] in this code snippit:\[code\]protected void Application_AuthenticateRequest(Object sender,EventArgs e){ if (HttpContext.Current.User != null) { if (HttpContext.Current.User.Identity.IsAuthenticated) { if (HttpContext.Current.User.Identity is FormsIdentity) { FormsIdentity id = (FormsIdentity)HttpContext.Current.User.Identity; FormsAuthenticationTicket ticket = id.Ticket; // Get the stored user-data, in this case, our roles string userData = http://stackoverflow.com/questions/14554494/ticket.UserData; string[] roles = userData.Split(','); HttpContext.Current.User = new GenericPrincipal(id, roles); } } }}\[/code\]When I used breakpoints, it turned that my PC name is the current user, which I think is not a \[code\]FormsIdentity\[/code\].Web.config:\[code\]<?xml version="1.0"?><!-- For more information on how to configure your ASP.NET application, please visit http://go.microsoft.com/fwlink/?LinkId=169433 --><configuration> <system.web> <compilation debug="true" targetFramework="4.0"/> </system.web></configuration>\[/code\]What am I missing here? and how to tell \[code\]HttpContext\[/code\] of the current user after a sucessful login?