在运行时加载 2 个版本的程序集 [英] Loading 2 versions of assembly at runtime
问题描述
过去几周我一直在尝试破解这个问题，但还没有找到好的解决方案；希望我能在这里得到答案.
I've been trying to crack this one over the last couple of weeks and have not found a good solution yet; hopefully I can get an answer here.
我有两个程序集(ZA & ZB)，它们都指向一个公共项目/dll(ZC)，但可能是不同的版本(即相同的 dll 名称，相同的命名空间，某些类可能不同).每个程序集都自行工作，但是，如果一个程序集在运行时由另一个程序集加载(例如 A 加载 B)，那么我无法让它工作.需要一些帮助.
I have two assemblies (ZA & ZB), both of which point to a common project/dll (ZC) but which could be on a different version (i.e. same dll name, same namespaces, some classes may be different). Each assembly works by itself, however, if one is loaded by the other at runtime (e.g. A loads B), then I cannot get it to work. Need some help.
设置如下:
- ZA 依赖于 ZC(通用)1.1 版
- ZB 依赖于 ZC 1.0 版
ZA 需要加载需要在运行时在 ZB(这取决于 ZC)中加载一些东西.
ZA needs to load needs to load something in ZB (which depends on ZC), at runtime.
ZA 是主应用程序.在其 bin 目录下，有一个插件目录 plugins/plugin-ZB，我想将所有 ZB 及其依赖项 (ZC) 放在其中.
ZA is the master app.
Under its bin directory, there's a plugins directory plugins/plugin-ZB under which I would like to place all of ZB and its dependencies (ZC).
这是我迄今为止尝试过的:
Here's what I've tried so far:
Assembly.Load() 使用相同版本的 dll - 工作正常.
Assembly.Load() using same version of dll - worked fine.
Assembly.Load() 使用不同版本的 dll - ZB 加载，但是当方法运行时，我得到一个方法未找到异常.
Assembly.Load() using different versions of dll - ZB loads, but when the method runs, I get a method not found exception.
AppDomain.Load() 出现文件未找到错误；我什至使用委托来解析程序集.
AppDomain.Load() got a file not found error; I even used the delegate to resolve assemblies.
关于 ZC 的一些细节:- 有些方法是公共静态的(有些不是).例如.Log.Log("hello");- 有些可能返回值(原语或对象).- 一些方法是非静态的(和返回值).
Some details regarding ZC:
- some methods are public static (some are not). E.g. Log.Log("hello");
- some may return values (primitives or objects).
- some methods are non static (and return values).
帮助?- TIA
推荐答案
m_Assembly1 = Reflection.Assembly.LoadFile(IO.Path.Combine(System.Environment.CurrentDirectory, "Old Version\Some.dll"))
m_Assembly2 = Reflection.Assembly.LoadFile(IO.Path.Combine(System.Environment.CurrentDirectory, "New Version\Some.dll"))
Console.WriteLine("Old Version: " & m_Assembly1.GetName.Version.ToString)
Console.WriteLine("New Version: " & m_Assembly2.GetName.Version.ToString)
m_OldObject = m_Assembly1.CreateInstance("FullClassName")
m_NewObject = m_Assembly2.CreateInstance("FullClassName")
从现在开始，我使用后期绑定和/或反射来运行我的测试.
From here on out I used late binding and/or reflection to run my tests.
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