c# - 如何将泛型类作为参数传递给非泛型类构造函数

This question already has an answer here:

Generic Type in constructor

(1个答案)


7个月前关闭。




假设以下代码(请在最后一个类的代码注释中阅读我的问题):

//This is my Generic Class
public class ClientRequestInfo<K, V>
{
    public string Id { get; set; }
    private Dictionary<K, V> parameters;

    public ClientRequestInfo()
    {
        parameters = new Dictionary<K, V>();
    }

    public void Add(K key, V value)
    {
        parameters.Add(key, value);
    }
 }

public class ProcessParameters()
{
    private void CreateRequestAlpha()
    {
        ClientRequestInfo<int, string> info = new ClientRequestInfo<int, string>();
        info.Add(1, "Hello");
        SynchRequest s = new SynchRequest(info);
        s.Execute();
    }
    private void CreateRequestBeta()
    {
        ClientRequestInfo<int, bool> info = new ClientRequestInfo<int, bool>();
        info.Add(1, true);
        SynchRequest s = new SynchRequest(info);
        s.Execute();
    }
}

public class SynchRequest
{
    //What type should I put here?
    //I could declare the class as SynchRequest<K, V> but I don't want
    //To make this class generic.
    private ClientRequestInfo<????,?????> info;
    private SynchRequest(ClientRequestInfo<?????,?????> requestInfo)
    {
        //Is this possible?
        this.info = requestInfo;
    }

    public void Execute()
    {}
}

最佳答案

如果不想使SynchRequestInfo通用，可以为ClientRequestInfo设置非通用基类吗？ --

public abstract class ClientRequestInfo
{
    public abstract void NonGenericMethod();
}

public class ClientRequestInfo<K, V> : ClientRequestInfo
{
    public override void NonGenericMethod()
    {
        // generic-specific implementation
    }
}

然后:

public class SynchRequest
{
    private ClientRequestInfo info;

    private SynchRequest(ClientRequestInfo requestInfo)
    {
        this.info = requestInfo;
    }

    public void Execute()
    {
        // ADDED: for example
        info.NonGenericMethod();
    }
}

关于c# - 如何将泛型类作为参数传递给非泛型类构造函数，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/1493801/