如何在饼图中的图例中设置不同的标签 [英] How to set different Label in Legend in Pie Chart

问题描述

我当前正在做一个内部有Pie Chart的窗口表单.我需要显示饼图的百分比.

I'm currently doing a window form that have Pie Chart inside.I need to show the percentage of the pie.

但是现在我遇到了一个问题:当我将此#PERCENT{P2}添加到系列中时，Pie Chart将显示如下:

But now I have eencountered a problem : When I add this #PERCENT{P2} to series the Pie Chart will show like this:

但是如果我将其删除，Pie Chart将会显示如下

But if I remove it, the Pie Chart will show like this

是否可以像这样制作Pie Chart?

Is there possible to make the Pie Chart Like this?

我的代码:

DataTable dt = new DataTable();
        dt.Columns.Add("completed", typeof(string));
        dt.Columns.Add("no", typeof(int));
        int noin = allitem - intime;
        dt.Rows.Add("Complete In Time", intime);
        dt.Rows.Add("OverDue", noin);

        chart1.DataSource = dt;

        chart1.DataBind();

推荐答案

是的，可以通过如下方式为每个DataPoints设置LegendText来轻松实现:

Yes, this is easily done by setting the LegendText for each of your DataPoints like this:

foreach (DataPoint dp in yourSeries.Points) dp.LegendText = yourLabel;

如果您的x值包含有意义的数字，则可以使用它们:

If your x-values contain meaningful numbers you can use them:

foreach (DataPoint dp in s.Points) dp.LegendText = dp.XValue + "";

但是，如果您将x值添加为字符串，则它们会丢失，并且您必须为LegendTexts使用其他来源.

But if you added the x-values as strings they are lost and you have to use another source for the LegendTexts.

如果只有固定数量的DataPoints，则可以直接设置LegendTexts:

If you only have a fixed number of DataPoints you can set the LegendTexts directly:

yourSeries.Points[0].LegendText = "hi";
yourSeries.Points[1].LegendText = "ho";
yourSeries.Points[2].LegendText = "hum";

请注意，通常Legend在每个Series中显示一个条目.但是对于Pie图表，它在每个DataPoint中显示一个条目！

Note that usually a Legend shows one entry per Series. But for a Pie chart it shows one entry per DataPoint!

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