我应该如何声明一个 class 类型列表?

How should I declare a class type list?

我有这个示例方法,我实际上是在另一个解决方案中实现它。

我想声明一个根据 switch() 的值采用不同类型的列表,应该采用什么类型?

class ReportStrings
{
    string date;
    string name;
}

class ReportIntegers
{
    int number;
    int amount;
}

public void main()
{
    List<SOMETHING> LReport;

    string reportname; //let's think it has a value

    switch (reportname)
    {
        case "ReportOne": LReport = new List<ReportStrings>; break;

        case "ReportTwo": LReport = new List<ReportIntegers>; break;
    }

    Console.WriteLine(LReport.Count());    
}

只需使用某种基础 class 并从中继承。然后创建一个基础列表 class 并像这样添加您的项目:

class ReportBase { }
class ReportStrings:ReportBase
{
    string date;
    string name;
}

class ReportIntegers:ReportBase
{
    int number;
    int amount;
}

public void main()
{
    List<ReportBase> LReport;

    string reportname=null; //let's think it has a value

    LReport=GetList(reportname);

    Console.WriteLine(LReport.Count());    
}
private List<ReportBase> GetList(string reportname)
{
   var LReport = new List<ReportBase>(); 
   switch (reportname)
    {
        case "ReportOne": 

          LReport.Add(new ReportStrings(){ /* ...add your values here... */};
          break;
        case "ReportTwo": 
          LReport.Add(new ReportIntegers(){ /*...add your values here... */}; 
          break;
    }
    return LReport;
}