C# 如何使用System.Web.UI.DataVisualization.Charting

这就是我到目前为止所做的。请通读整个描述以了解我的要求

        System.Web.UI.DataVisualization.Charting.ChartArea chartArea1 = new System.Web.UI.DataVisualization.Charting.ChartArea();
        System.Web.UI.DataVisualization.Charting.Legend legend1 = new System.Web.UI.DataVisualization.Charting.Legend();
        System.Web.UI.DataVisualization.Charting.Series series1 = new System.Web.UI.DataVisualization.Charting.Series();
        System.Web.UI.DataVisualization.Charting.Series series2 = new System.Web.UI.DataVisualization.Charting.Series();
        System.Web.UI.DataVisualization.Charting.Chart chart1 = new System.Web.UI.DataVisualization.Charting.Chart();
        //((System.ComponentModel.ISupportInitialize)(chart1)).BeginInit();
        //this.SuspendLayout();
        // 
        // chart1
        // 
        chartArea1.Name = "ChartArea1";
        chart1.ChartAreas.Add(chartArea1);
        legend1.Name = "Legend1";
        chart1.Legends.Add(legend1);
        //chart1.Location = new System.Drawing.Point(49, 62);
        //chart1.Name = "chart1";
        series1.ChartArea = "ChartArea1";
        series1.ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.StackedBar;
        series1.Legend = "Legend1";
        series1.Name = "Series2";
        series2.ChartArea = "ChartArea1";
        series2.ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.StackedBar;
        series2.Legend = "Legend1";
        series2.Name = "Series3";
        chart1.Series.Add(series1);
        chart1.Series.Add(series2);
        //chart1.Size = new System.Drawing.Size(534, 300);
        chart1.TabIndex = 0;
        //chart1.Text = "chart1";

        chart1.Series["Series2"].Points.Add(new DataPoint(1, 1));
        chart1.Series["Series2"].Points.Add(new DataPoint(2, 4));
        chart1.Series["Series2"].Points.Add(new DataPoint(3, 5));
        chart1.Series["Series3"].Points.Add(new DataPoint(2, 3));

        chart1.Series["Series2"].IsValueShownAsLabel = true;
        chart1.Series["Series3"].IsValueShownAsLabel = true;

        using (MemoryStream ms = new MemoryStream())
        {
            chart1.SaveImage(ms, ChartImageFormat.Png);
            return File(ms.ToArray(), "image/png");
        }

这将给出下面的图表

但我需要的是一张如下的图表，上面有起始值和结束值

我怎么得到它

更新： 我希望显示的数据存储在如下列表中

   List<dummyGraph> objGraphList = new List<dummyGraph>();

        dummyGraph objDummyGraph = new dummyGraph();
        objDummyGraph.RiskCategories = "Compliance,Law,Legislation";
        objDummyGraph.HighImpactRisks = "4";
        objDummyGraph.MediumImpactRisks = "1";
        objDummyGraph.LowImpactRisks = "0";
        objDummyGraph.NoImpactRisks = "5";
        objDummyGraph.index = 1;

        objGraphList.Add(objDummyGraph);

        objDummyGraph = new dummyGraph();

        objDummyGraph.RiskCategories = "Construction";
        objDummyGraph.HighImpactRisks = "5";
        objDummyGraph.MediumImpactRisks = "1";
        objDummyGraph.LowImpactRisks = "4";
        objDummyGraph.NoImpactRisks = "0";
        objDummyGraph.index = 2;

        objGraphList.Add(objDummyGraph);

List objGraphList=new List（）；
dummyGraph objDummyGraph=新dummyGraph（）；
objDummyGraph.RiskCategories=“合规、法律、立法”；
objDummyGraph.HighImpactRisks=“4”；
objDummyGraph.mediummpactrisks=“1”；
objDummyGraph.LowImpactRisks=“0”；
objDummyGraph.NoImpactRisks=“5”；
objDummyGraph.index=1；
添加（objDummyGraph）；
objDummyGraph=新dummyGraph（）；
objDummyGraph.RiskCategories=“施工”；
objDummyGraph.HighImpactRisks=“5”；
objDummyGraph.mediummpactrisks=“1”；
objDummyGraph.LowImpactRisks=“4”；
objDummyGraph.NoImpactRisks=“0”；
objDummyGraph.index=2；
添加（objDummyGraph）；

也许

系列ChartType.RangeBar

图表类型比

系列ChartType.StackedBar

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这里有一个参考资料：

你能提供你试图显示的数据的描述吗？好的，休尼特，我同意。但我如何在范围栏中显示起始值和结束值呢？我看到了一个特征，比如链接中每个点的Y值的数量。但仅仅给它赋值并不是我想要的，你给它两个y值@你能解释一下吗，现在我使用serieInstance.Points.AddXY（xordinal，yplot1，yplot2）；设置y值。根据你的建议，我怎么能给出两个Y值？嗯，你已经在这么做了，对吗？有关rangbars/Columnsher的附加说明和提示，请参阅：