Label

ChartDataPointLevel.Label property

表示数据点级别的数据标签。适用于 Treemap 和 Sunburst sereis 类型。 只读IDataLabel

public IDataLabel Label { get; }

例子

using (Presentation pres = new Presentation())

   IChart chart = pres.Slides[0].Shapes.AddChart(ChartType.Sunburst, 50, 50, 500, 400);

    IChartSeries series = chart.ChartData.Series[0];

    IChartDataPointLevel dataPointLevel = series.DataPoints[0].DataPointLevels[1];

    dataPointLevel.Label.DataLabelFormat.ShowCategoryName = false;
    dataPointLevel.Label.DataLabelFormat.ShowValue = true;
    dataPointLevel.Label.DataLabelFormat.ShowSeriesName = true;

    dataPointLevel = series.DataPoints[12].DataPointLevels[1];
    dataPointLevel.Label.TextFormat.PortionFormat.FillFormat.FillType = FillType.Solid;
    dataPointLevel.Label.TextFormat.PortionFormat.FillFormat.SolidFillColor.Color = Color.Red;

也可以看看