Page_Load()-edited

protected void Page_Load(object sender, EventArgs e)
        {
            if (ViewState.Count <= 0)
            {
                InitializeBoard();
                this.turn = 0;
            }
            if (IsPostBack)
            {
                this.tictactoe = (Dictionary<int[,], int>)ViewState["tictactoe"];
                this.board = this.tictactoe.Keys.First();
                this.turn = this.tictactoe.Values.First();
            }
            if ((this.turn % 2 == 1) || this.turn ==0)
            {
                ComputerPlay();
            }
        }