C＃中的动态调用方法

Question

I want to be able to store function reference and disregard arguments until it actually is used.

Here's what I'd like for it to look like:

StoreType f=MyFunction;
.......
var r=f.Invoke(arg1,arg2,arg3) as ReturnType;

This is kind of like Action and Func, but those are strongly typed, and I want to be able to declare and use this type without precisely knowing how many arguments and of what types the function will take.

How do I do this in c#?

Answer 1

For the argument count, just pass an array of object containing the arguments.

f.Invoke(new object[]{ arg1, args2, args3, ... });

For the type use the method

Convert.ChangeType(objectToConvert, destinationType);

Should work for me :)

Answer 2

您可以使用较旧的delegate语法。

public delegate ReturnType MyFunction(string arg1, int arg2, ...);

var result = MyFunction.Invoke(arg1, arg2, ...);