In asp Usage of cookies in. Net

stay Asp.net in Cookie Usage of

    protected void Page_Load(object sender, EventArgs e)
    {
        HttpCookie cookie = new HttpCookie("aspcn");// Statement 
        Response.AppendCookie(cookie);
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Cookies["aspcn"].Value = "bbnnnndddddn";// assignment 

    }
    protected void Button2_Click(object sender, EventArgs e)
    {

        this.TextBox2.Text = Request.Cookies["aspcn"].Value;// Value 
    }