I have an application that generates a lot of data at 60 Hz and I have used a timer to update the chart at a periodic rate.  I'd like to show maybe the last hour of data on a chart, but I understand the chart slows down after say 10,000 pts.  One thing I would like to do is add points in a batch, but not have the chart update after every point is added.  Is there any way to turn off the updates, add points to the series, then cause a refresh to occur.  This is what I am currently doing in my timer_Tick() function:

private void timer1_Tick(object sender, EventArgs e)

{

NumericTimeSeries series = this.ultraChart1.Series[0] as NumericTimeSeries;

NumericTimeDataPoint dataPoint = new NumericTimeDataPoint(this.dataListX[index], this.dataListY[index], this.dataListX[index].ToString(), false);

series.Points.Add(dataPoint);

index++;

}

this.ultraChart1.Axis.X.TickmarkInterval = series.Points.Count / maxLabels;

}