Using Queue

        protected monitor.monitorSoapClient client;        protected Queue<float> CPU30;        protected Queue<float> MEM30;        protected Queue<String> TIME30;        protected void Page_Load(object sender, EventArgs e)        {            if (Session["time"] == null)            {                TIME30 = new Queue<String>();                CPU30 = new Queue<float>();                MEM30 = new Queue<float>();                Session.Add("time", TIME30);                Session.Add("cpu", CPU30);                Session.Add("mem", MEM30);            }            else            {                TIME30 = (Queue<String>)Session["time"];                CPU30 = (Queue<float>)Session["cpu"];                MEM30 = (Queue<float>)Session["mem"];            }            client = new monitor.monitorSoapClient();                    }        protected void Timer1_Tick(object sender, EventArgs e)        {            float cpu = client.getHostCpuUsage();            float mem = client.getHostMemUsage();            String time = DateTime.Now.ToUniversalTime().ToString();            Label1.Text = time + "<br/>CPU Usage: " + cpu + "% <BR/>"                        + "MEM Usage: " + mem + "MB<br/>";            CPU30.Enqueue(cpu);            MEM30.Enqueue(mem);            TIME30.Enqueue(time);            if (TIME30.Count > 10)                TIME30.Dequeue();            if (MEM30.Count > 10)                MEM30.Dequeue();            if (CPU30.Count > 10)                CPU30.Dequeue();            Label1.Text += "first cpu:" + CPU30.Peek().ToString() + ".. first mem:" + MEM30.Peek().ToString() + ".. time:" + TIME30.Peek() + ".. count:" + TIME30.Count;        }