在所有程序集中查找类型 [英] Find Types in All Assemblies

问题描述

我需要在网站或 Windows 应用程序的所有程序集中查找特定类型，有没有简单的方法可以做到这一点?就像 ASP.NET MVC 的控制器工厂如何查看控制器的所有程序集一样.

I need to look for specific types in all assemblies in a web site or windows app, is there an easy way to do this? Like how the controller factory for ASP.NET MVC looks across all assemblies for controllers.

谢谢.

推荐答案

有两个步骤可以实现:

• AppDomain.CurrentDomain.GetAssemblies() 为您提供当前应用程序域中加载的所有程序集.
• Assembly 类提供了一个 GetTypes() 方法来检索该特定程序集中的所有类型.

• The AppDomain.CurrentDomain.GetAssemblies() gives you all assemblies loaded in the current application domain.
• The Assembly class provides a GetTypes() method to retrieve all types within that particular assembly.

因此您的代码可能如下所示:

Hence your code might look like this:

foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies())
{
    foreach (Type t in a.GetTypes())
    {
        // ... do something with 't' ...
    }
}

要查找特定类型(例如，实现给定接口、从共同祖先继承或其他任何类型)，您必须过滤掉结果.如果您需要在应用程序的多个位置执行此操作，最好构建一个提供不同选项的帮助程序类.例如，我常用的命名空间前缀过滤器、接口实现过滤器和继承过滤器.

To look for specific types (e.g. implementing a given interface, inheriting from a common ancestor or whatever) you'll have to filter-out the results. In case you need to do that on multiple places in your application it's a good idea to build a helper class providing different options. For example, I've commonly applied namespace prefix filters, interface implementation filters, and inheritance filters.

有关详细文档，请查看 MSDN 此处 和 此处.

For detailed documentation have a look into MSDN here and here.

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