保持与未知的签名方法字典来用反射调用 [英] Keep a dictionary of methods with unknown signature to be invoked with reflection

问题描述

我想有一个使用字符串作为键和一些表示方法的字典， 所有这些都可能有不同的签名，以的，作为值。从这个事情，我应该能够访问的MethodInfo 和对象的实例如果方法不是静态的，这样以后我可以通过名字找到它并调用它使用反射。

I want to have a dictionary which uses strings as keys and something that represents methods, all of which may have different signatures, as values. From this something, I should be able to access a MethodInfo and an instance of an object if the method is not static, such that later on I can find it by name and invoke it using reflection.

我觉得代表会做，但我不能找到一种方法来施放一个静态或实例法成代表。我还可以创建自己的类或结构保存对象和的MethodInfo ，但即便如此，班里的用户必须获得的MethodInfo 关闭任何他想做的方法添加到我的字典，将需要添加一个引用反射随处可见（而不是也许只是路过方法本身的或者像（代表）myMethod的）。有没有办法做到这一点？

I thought Delegate would do, but I cannot find a way to cast a static or instance method into a Delegate. I could also create my own class or structure that holds an object and a MethodInfo, but if so, my class' users would have to get a MethodInfo off of whatever method he wants to add to my dictionary and would need to add a reference to Reflection everywhere (instead of perhaps just passing the method itself or something like (Delegate)myMethod). Is there a way to do this?

推荐答案

如果你不介意每次都指定一个委托类型，你添加到字典，那么你可以使用代表：

If you don't mind specifying a delegate type each time you add to the dictionary, then you can use Delegate:

void A() {}
string B(string arg) { return arg; }

void Test()
{
    var dict = new Dictionary<string, Delegate>();

    dict.Add("A", new Action(A));
    dict.Add("B", new Func<string, string>(B));
}

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