加载 .DLL 文件并从类中访问方法? [英] Load a .DLL file and access methods from class within?

问题描述

我对加载这样的库完全陌生，但我的立场是:

I'm completely new to loading in libraries like this, but here's where I stand:

我有一个自制的 DLL 文件，它非常简单，包括类本身和方法.在加载这个库的主程序中，我有:

I have a homemade DLL file it's about as simple as it gets, the class itself and a method. In the home program that loads this library, I have:

Assembly testDLL = Assembly.LoadFile("C:\dll\test.dll");

从这里开始，我有点卡住了.据我所知，它正在正确加载它，因为当我更改名称时它会给我错误.

From here, I'm kind of stuck. As far as I know, it's loading it correctly because it gives me errors when I change the name.

我从这里做什么?我究竟如何加载类 &里面的方法呢?

What do I do from here? How exactly do I load the class & methods within it?

谢谢.

推荐答案

使用 Assembly.GetTypes() 获取所有类型的集合，或 Assembly.GetType(name) 获取特定类型.

Use Assembly.GetTypes() to get a collection of all the types, or Assembly.GetType(name) to get a particular type.

然后，您可以使用 Activator.CreateInstance(type) 使用无参数构造函数创建该类型的实例，或使用 Type.GetConstructors 获取构造函数并调用它们以创建实例.

You can then create an instance of the type with a parameterless constructor using Activator.CreateInstance(type) or get the constructors using Type.GetConstructors and invoke them to create instances.

同样，您可以使用 Type.GetMethods() 等获取方法

Likewise you can get methods with Type.GetMethods() etc.

基本上，一旦你有了一个类型，你就可以做很多事情 - 查看 成员列表 了解更多信息.如果您在尝试执行特定任务时遇到困难(泛型可能很棘手)，只需提出一个具体问题，我相信我们能够提供帮助.

Basically, once you've got a type there are loads of things you can do - look at the member list for more information. If you get stuck trying to perform a particular task (generics can be tricky) just ask a specific question an I'm sure we'll be able to help.

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