来自字符串值的通用类型 [英] Generic type from string value

问题描述

我有一个自定义类，它依赖于要传递的泛型类型 T.我只知道它是什么类型的字符串形式，因为它是这样发送的.我一直在四处寻找，但似乎无法完全找到我需要的东西.我可以将字符串值解析为一种类型，但我需要将其解析为...某种东西，我可以将其作为通用参数传递.

I got a custom class, who relies on a generic type T to be passed along. I only know what type it is in string form, because that's how it's being sent. I've been searching around but can't seem to find exactly what I need. I can parse the string value to a type, but I need to parse it to... something, that I can pass as a generic parameter.

我已经重写了我的问题，如下:

I've rewritten my problem, as such:

// Classes structure
namespace Mynamespace
{
    public interface IRequest
    {
    }

    public interface IHandler<T> where T : IRequest
    {
        void Handle(T item);
    }

    public class MyRequest : IRequest
    {
    }

    public class MyHandler : IHandler<MyRequest>
    {
        void Handle(MyRequest item)
        {
        }
    }
}

// The info I get, and I know typeString is a IRequest
string typeString = "My";
object requestItem = [insert xml parsing here];

// I then create a handler, to handle the request
Type typeHandler = Type.GetType("Mynamespace." + typeString + "Handler");
var handler = Activator.CreateInstance(typeHandler);

Type typeRequest = Type.GetType("Mynamespace." + typeString + "Request");

// what I want to do:
handler.Handle(requestItem);

我不能这样做，因为 handler 和 requestItem 只是对象所以我需要将'handler'解析为'typeHandler'，并将requestItem解析为'typeRequest'

I can't do that because handler and requestItem are just objects So I need to parse 'handler' to 'typeHandler', and requestItem to 'typeRequest'

我想通了，我使用 InvokeMember 来访问它.:)

I figured it out, I used InvokeMember to access it. :)

typeHandler.InvokeMember("Handle", BindingFlags.InvokeMethod, null, handler, new[] { requestItem });

推荐答案

我想通了，我使用 InvokeMember 来访问它.:)

I figured it out, I used InvokeMember to access it. :)

typeHandler.InvokeMember("Handle", BindingFlags.InvokeMethod, null, handler, new[] { requestItem });

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