How do I get the current username in .NET using C#?

Question

How do I get the current username in .NET using C#?

Answer 1

string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name; 

Answer 2

If you are in a network of users, then the username will be different:

Environment.UserName - Will Display format : 'Username' 

rather than

System.Security.Principal.WindowsIdentity.GetCurrent().Name - Will Display format : 'NetworkName\Username' 

Choose the format you want.