C# 如何更改图表“系列”中特定数据点的颜色？
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How to change colors of specific data points in a "series" of a chart?
提问by vish213
I don't know if can make it clear otherwise, So here is the code:-
我不知道是否可以说清楚，所以这里是代码：-
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?
现在，我只想用与“更正者”条不同的颜色显示“尝试者”条。默认情况下，它们显示为灰蓝色。我该如何完成？
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?
图表全部显示为蓝色。我希望它们以不同的颜色出现。我想我没有正确地将数据添加到图表中以实现这一目标？
采纳答案by wsclaassen
I would suggest adding an extra series to your chart and changing the color set on that.
我建议在您的图表中添加一个额外的系列并更改其上的颜色设置。
回答by Brian
You change the color on the series point(index) like this:
您可以像这样更改系列点（索引）上的颜色：
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:
重新绘制图表可能还需要一些代码，具体取决于您在做什么。对我来说，我想动画我的图表，在程序运行时动态构建数据点（一列），显示我正在做的一些工作的状态，这需要：
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()
