Hi,

I am drawing a scatter chart with ~ 1500 data points in one series and two datapoints in another series. The second series is a time marker, the user will be clicking on the chart to scrub the marker back and forth across the data (this updates other visualizations as well). This works fine without the 1500 data point series, but once I add that in it takes multiple seconds to scrub the marker. The code that scrubs the marker is:

CurrentTimeSeriesXCoordinates[0].Value = p.X;

I guess this is triggering an expensive refresh of the other series as well, which is unacceptably slow for my application. Any ideas for workarounds? I'm going to try drawing a second identical chart so the series arent in the same chart, but I'd _really_ like to be able to update my charts in a reasonable amount of time.

Daniel