protected void Page_Load(object sender, EventArgs e)
 {
     if (SecretNumber == null)
     {
         SecretNumber sn = new SecretNumber();
         SecretNumber = sn;
     }
 }
        protected void Page_Load(object sender, EventArgs e)
        {
            Page.SetFocus(TextBoxNumber);

            if (SecretNumber == null)
            {
                SecretNumber newNumber = new SecretNumber();

                SecretNumber = newNumber;
            }
        }