c# 将 winforms 图表绑定(bind)到对象列表

Question

我有一个这样定义的对象列表:

public class ChartData
{
    public int New
    {
        get;
        set;
    }

    public int Closed
    {
        get;
        set;
    }

    public int Canceled
    {
        get;
        set;
    }
}

如何将 winforms-chart(条形图类型)绑定(bind)到 List<ChartData> ？我需要为对象中的每个属性创建一个系列(即，我将有 3 个系列)，对于图表中的每个点，我想查看对象中所有 3 个属性的值。

我设法以编程方式添加系列(它们在图表中可见)，但是当我尝试设置数据源时，它崩溃了:

        List<ChartData> data = new List<ChartData>();
        // fill with random int values
        chart.DataSource = data;

        chart.Series.Add("New").XValueMember = "New";
        chart.Series["New"].ChartType = SeriesChartType.Bar;
        chart.Series["New"].XValueType = ChartValueType.Int32;
        chart.Series["New"].YValueType = ChartValueType.Int32;

        chart.Series.Add("Canceled").XValueMember = "Canceled";
        chart.Series["Canceled"].ChartType = SeriesChartType.Bar;
        chart.Series["Canceled"].XValueType = ChartValueType.Int32;
        chart.Series["Canceled"].YValueType = ChartValueType.Int32;

        chart.Series.Add("Closed").XValueMember = "Closed";
        chart.Series["Closed"].ChartType = SeriesChartType.Bar;
        chart.Series["Closed"].XValueType = ChartValueType.Int32;
        chart.Series["Closed"].YValueType = ChartValueType.Int32;

        chart.DataBind();

带有 System.ArgumentOutOfRangeException ，说 Data points insertion error. Only 1 Y values can be set for this data series. ...

任何帮助/提示？

Answer 1

将 XValueMember 替换为 YValueMembers :

        chart.Series.Add("New").YValueMembers = "New";
        chart.Series["New"].ChartType = SeriesChartType.Bar;
        chart.Series["New"].XValueType = ChartValueType.Int32;
        chart.Series["New"].YValueType = ChartValueType.Int32;

        chart.Series.Add("Canceled").YValueMembers = "Canceled";
        chart.Series["Canceled"].ChartType = SeriesChartType.Bar;
        chart.Series["Canceled"].XValueType = ChartValueType.Int32;
        chart.Series["Canceled"].YValueType = ChartValueType.Int32;

        chart.Series.Add("Closed").YValueMembers = "Closed";
        chart.Series["Closed"].ChartType = SeriesChartType.Bar;
        chart.Series["Closed"].XValueType = ChartValueType.Int32;
        chart.Series["Closed"].YValueType = ChartValueType.Int32;