Creating Cookie and Using Cookie

Hi,

Code to Create a Cookie:

protected void Page_Load(object sender, EventArgs e)
    {

    }
    int x;    // Made a Variable with Datatype Int for Future Use
    HttpCookie myCookie;   // Defined a Cookie named myCookie.
    protected void Button1_Click(object sender, EventArgs e)
    { 
        x = Convert.ToInt32(TextBox1.Text);  // Converted textbox Value which we earlier Did.
        myCookie = new HttpCookie("txtValue");  // Assigned Variable myCookie.
        myCookie.Value = Convert.ToString(x);   // Value assigned to myCookie.
        Response.Cookies.Add(myCookie); //This Simple Made a Cookie that will Expire in Session End.
        myCookie.Expires = DateTime.Now.AddMinutes(15);  // We made is Persistent and stored it for Next 15 minutes.
      
    }

Code to Access Cookie in anywhere in Application.

protected void Button2_Click(object sender, EventArgs e)
    {
       
        HttpCookie storedCook = Request.Cookies["txtValue"];  // Requested from Server for Cookie
        if (storedCook != null)  
            x = Convert.ToInt32(storedCook.Value);  // Converted to Integer again.
        TextBox1.Text = Convert.ToString(x * x);    // Now Printed Value in Textbox.
    }