C# MVC FormAuthentication, Logout

In this video,

I have explained and implemented FormAuthentication and Logout.
FormsAuthentication.SetAuthCookie(pr.Username, true);
FormsAuthentication.SignOut();

SQL Server Playlist
https://www.youtube.com/watch?v=IRt1RAzExtg&list=PLu0T8-EDgFr_lvgE_EsAzJtJ-LFhFW0Mi

C# MVC Playlist
https://www.youtube.com/watch?v=mhGoP4Eu0QE&list=PLu0T8-EDgFr8JjGsbe_5ueJAa5xBAwhEf