public static void Gamer_LoginSuccess(object sender, SignedInEventArgs e)
        {
            // set the local gamer to the signedin gamer
            gamer = e.Gamer;

            // begin asynchronously getting the player's profile. Do this because it may take time to get over the network otherwise.
            gamer.BeginGetProfile(endGetProfile, gamer);

            // remove the signedin handler
            SignedInGamer.SignedIn -= signInHandler;
            Console.WriteLine("Gamer: " + gamer.Gamertag + " signed in.");

            int maxNumberOfPlayers = 1;
            NetworkSession.BeginFind(NetworkSessionType.PlayerMatch, maxNumberOfPlayers, null, endFind, session);
        }