How do I get the first name and last name of the logged in Windows user?

Question

How I can get my first name last name with c# in my system (logging in windows with Active Directory username and pass)?

Is it possible to do that without going to t

Answer 1

The fastest way is to bind directly to their AD object using their SID, which you already have. For example:

//ASP.NET
var identity = (WindowsIdentity) HttpContext.Current.User.Identity;

//Desktop
var identity = WindowsIdentity.GetCurrent();

var user = new DirectoryEntry($"LDAP://");

//Ask for only the attributes you want to read.
//If you omit this, it will end up getting every attribute with a value,
//which is unnecessary.
user.RefreshCache(new [] { "givenName", "sn" });

var firstName = user.Properties["givenName"].Value;
var lastName = user.Properties["sn"].Value;