Hi,

I have a ScatterLine chart with multiple data series. I want to be able to control the appearance of the lines in the chart based on the data. The data provides a series of points (which I plot successfully) and also attributes for each point which I want reflected in the color of the point and the thickness of the line segement.

I have tried using the ChartDrawItem event to modify the PE properties but cannot seem to get this to work. I used the following code (largely cut and paste from an earlier post)

This method is triggered by the charts ChartDrawItem event.

Any suggestions on what I am missing?

thx

l.

        private void ultraChart1_ChartDrawItem(object sender, Infragistics.UltraChart.Shared.Events.ChartDrawItemEventArgs e)

        {

            if (e.Primitive is Polyline)

            {

                Polyline pl = (Polyline)e.Primitive;

                for (int x = 0; x < pl.points.Length; x++)

                {

                    try

                    {

                        if (Convert.ToDouble(pl.points[x].Value) < 0)

                        {

                            e.Primitive.PE.Fill = Color.Red;

                            e.Primitive.PE.Stroke = Color.Red;

                            e.Primitive.PE.StrokeWidth = e.Primitive.PE.StrokeWidth * 20;

                        }

                    }

                    catch { }

                    finally { }

                }

            }

        }