c# - 无法从 List 转换为 List

Question

我正在尝试在采用不同类型的列表中创建一个属性。这是我的课:

public class ChartData
{
    public string id { get; set; }
    public List<dynamic> data { get; set; }

    public ChartData()
    {
    }

    public ChartData(string id, List<DateTime?> data)
    {
        this.id = id;
        this.data = data;
    }
}

    public ChartData(string id, List<float?> data)
    {
        this.id = id;
        this.data = data;
    }

    public ChartData(string id, List<int?> data)
    {
        this.id = id;
        this.data = data;
    }

在代码中，我使用data 列表来存储DateTime?、float? 或int? 数据.我该怎么做才能将这些不同类型存储在一个类属性中？

我收到错误:

Argument 2: cannot convert from 'System.Collections.Generic.List<System.DateTime?>' to 'System.Collections.Generic.List<dynamic>'

Answer 1

如果你在实例化之前知道类型，我会推荐使用泛型

public class ChartData
{
   public string id { get; set; }
}

public class ChartData<T> : ChartData
{
    public List<T> data { get; set; }

    public ChartData()
    {
    }

    public ChartData(string id, List<T> data)
    {
        this.id = id;
        this.data = data;
    }
}

用法:

ChartData<int> intData = new ChartData<int>("ID1", new List<int>());
ChartData<DateTime> dateData = new ChartData<DateTime>("ID1", new List<DateTime>());
ChartData<float> floatData = new ChartData<float>("ID1", new List<float>());



List<ChartData> list = new List<ChartData>() {
    intData,
    dateData,
    floatData
};