How to change colors of specific data points in a "series" of a chart?

Question

I don't know if can make it clear otherwise, So here is the code:-

    Series series2 = null;
    for (int i = 0; i < 4; i++)
    {
        series2 = chart2.Series.Add(subjectnames[i]);
    }
    for (int i = 0; i < 4; i++)
    {
        series2.Points.Add(attemptper[i]);
        series2.Points.Add(correctper[i]);
    }

Now, I just want to display "attemptper" bars in different color than "correctper" bars. By default they are appearing in greyish-blue color. How do I get it done?

The charts appear all in bluish color. I want them to appear in different colors. I think I haven't added the data correctly to the chart for this to achieve?

Answer 1

You change the color on the series point(index) like this:

        Chart1.Series[1].Points[0].Color = Color.Red

Getting the chart to repaint might also take some code, depending on what you're doing. For me, I wanted to animate my chart, building the data point (a column) dynamically as the program ran, showing the status of some work I was doing, which required this:

        Chart1.Series.ResumeUpdates()
        Chart1.Series[1].Points.Item[0].YValues = Double(1) {MyNewValue, 0}
        Chart1.Series[1].Points[0].Color = Color.Red
        Chart1.DataBind()
        Chart1.Series.Invalidate()
        Chart1.Series.SuspendUpdates()