C＃將Winforms圖表綁定到對象列表

Question

我有這樣定義的對象列表：

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

    public int Closed
    {
        get;
        set;
    }

    public int Canceled
    {
        get;
        set;
    }
}

如何將winforms-chart（條形圖類型）綁定到List<ChartData> ？ 我需要為對象中的每個屬性創建一個序列（即，我將擁有3個序列），並且對於圖表中的每個點，我都希望查看對象中所有3個屬性的值。

我設法以編程方式添加了該系列（它們在圖表中可見），但是當我嘗試設置數據源時，它崩潰了：

        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();

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

有幫助/提示嗎？

Answer 1

將XValueMember替換為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;