如何使用 Microsoft Chart Control for .NET Framework 3.5 绘制雷达图答案

【问题标题】：How can I draw a Radar Chart using Microsoft Chart Control for .NET Framework 3.5如何使用 Microsoft Chart Control for .NET Framework 3.5 绘制雷达图
【发布时间】：2011-02-18 08:17:25
【问题描述】：

如何使用 Microsoft Chart Control for .NET Framework 3.5 绘制雷达图。我可以使用 MSDN 中的以下代码绘制“柱形”图表。我找不到雷达图的任何示例。

    Series ChampionshipsSeries = chtNBAChampionships2.Series["Championships"];
    //Add data points 
    ChampionshipsSeries.Points.AddXY("Celtics", 17);
    ChampionshipsSeries.Points.AddXY("Lakers", 15);
    ChampionshipsSeries.Points.AddXY("Bulls", 6);
    ChampionshipsSeries.Points.AddXY("Spurs", 4);
    ChampionshipsSeries.Points.AddXY("76ers", 3);
    ChampionshipsSeries.Points.AddXY("Pistons", 3);
    ChampionshipsSeries.Points.AddXY("Warriors", 3);

寻求您的帮助。

【问题讨论】：

标签： asp.net graph

【解决方案1】：

在尝试了以下来源的示例后，我终于管理了自己，

Samples for Chart Control - .NET Framework 4

虽然这些示例是针对 .NET Framework 4 的，但我在 .NET Framework 3.5 for Radar Chart 中进行了尝试，并且成功了。

如果你有兴趣可以看看这个页面，http://nazmulweb.com/site5/demo/chart/

后来，我从http://code.msdn.microsoft.com/mschart/Release/ProjectReleases.aspx?ReleaseId=1591找到了.NET Freamework 3.5的示例

作为一个现成的参考，你可以关注这个，

        /*
    --------------------------
    Criteria    Volvo   Toyota
    --------    -----   ------
    Speed       37      23
    Fuel        32      19
    Comfort     38      31
    Safety      39      33
    --------------------------
    */

    DataTable dt = new DataTable();
    dt.Columns.Add("Criteria");
    dt.Columns.Add("Volvo");
    dt.Columns.Add("Toyota");
    DataRow dr1 = dt.NewRow();
    dr1.ItemArray = new object[] { "Speed", 37, 23 };
    dt.Rows.Add(dr1);
    DataRow dr2 = dt.NewRow();
    dr2.ItemArray = new object[] { "Fuel", 32, 19 };
    dt.Rows.Add(dr2);
    DataRow dr3 = dt.NewRow();
    dr3.ItemArray = new object[] { "Comfort", 38, 31 };
    dt.Rows.Add(dr3);
    DataRow dr4 = dt.NewRow();
    dr4.ItemArray = new object[] { "Price", 39, 33 };
    dt.Rows.Add(dr4);

    Chart aRadarChart = new Chart();
    aRadarChart.Width = Unit.Pixel(500);
    aRadarChart.DataSource = dt;
    // Add title 
    aRadarChart.Titles.Add("TOYOTA　VS　VOLVO");
    // Add a legend 
    Legend lgnd = new Legend();
    lgnd.Enabled = true;
    aRadarChart.Legends.Add(lgnd);

    //Important: add ChartArea, otherwise no graph will be shown
    ChartArea ca = new ChartArea("myChartArea");
    aRadarChart.ChartAreas.Add(ca);

    string car = String.Empty;
    for (int i = 1; i < dt.Columns.Count; i++)
    {
        car = dt.Columns[i].ColumnName;

        aRadarChart.Series.Add(car);//Name of the series :Volvo and Toyota
        aRadarChart.Series[car].YValueMembers = car;//Either Volvo or Toyota
        aRadarChart.Series[car].XValueMember = dt.Columns[0].ColumnName;//Criteria
        //Define here: what kind of Chart you want
        aRadarChart.Series[car].ChartType = SeriesChartType.Radar;
    }

    //binding data
    aRadarChart.DataBind();
    //Add Chart to a PlaceHolder Control
plhForChart.Controls.Add(aRadarChart);
    //Page.Controls.Add(aRadarChart);

    //for saving image
    aRadarChart.SaveImage(Server.MapPath("App_Data/Sample.jpg"));

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