StaticGround

Using the System.Threading and System.Security.Principal namespaces, you can obtain the identity of the user associated with the current thread:

AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);



IPrincipal wp = Thread.CurrentPrincipal;

IIdentity id = wp.Identity;



string authType = id.AuthenticationType;

string isAuth = id.IsAuthenticated.ToString();

string name = id.Name;