Cookie记住我的名字

private void CreateCookie()
    {
        HttpCookie cookie = new HttpCookie("UserID");
        if (this.cbxRemeberUser.Checked)
        {
            cookie.Value = this.txtUserID.Text;
        }
        cookie.Expires = DateTime.MaxValue;
      //cookie.Expires = DateTime.Now.AddHours(8);
        Response.AppendCookie(cookie);
    }

登陆的时候：

                    if (object.Equals(Request.Cookies["UserID"], null))
                    {
                        CreateCookie();
                    }
                    else
                    {
                        CreateCookie();
                    }

加载页面时：

        if (!IsPostBack)
        {
            if (!object.Equals(Response.Cookies["UID"], null))
            {
                HttpCookie hcRead = Response.Cookies["UID"];
                txtUID.Text = hcRead.Value;
            }
        }