private void SimulateData()
        {
            //very simple data ...
            ChartCalendar timestamp = new ChartCalendar(DateTime.Now.AddHours(-1));
            double[] data = new double[] { 5.1, 5.2, 5.3};
            DoubleArray samples = new DoubleArray(data);
            this.ChartData.AddNewSampleRecord(timestamp, samples, "memo1...");

            timestamp = new ChartCalendar(DateTime.Now);
            data = new double[] { 5.2, 5.3, 5.4 };
            samples = new DoubleArray(data);
            this.ChartData.AddNewSampleRecord(timestamp, samples, "memo2...");
        }