当您在.NET中添加DLL的引用在项目中会发生什么 [英] What happens when you add a reference of a dll in your project in .net

问题描述

我在.NET类库项目说，当建将创建一个DLL即A.DLL，A。我有另外一个项目说B和该项目包含DLLA.DLL的参考。到底发生了什么，当我加入A在B中的参考？谁能告诉我在编译时和运行时会发生什么？

I have a class library project in .net say "A" which when built will create a dll namely "A.dll". I have another project say "B" and this project contains the reference of the dll "A.dll". What exactly happens when I add the reference of A in B? Can anybody please tell me what happens both during compile time as well as during runtime?

推荐答案

A.DLL所使用的编译器，结合使用的任何指令和别名，进行类型解析。当发现的那些类型，标记物为在A.DLL类型的包含在IL。如果A.DLL则根本不使用参考将被删除。

A.dll is used by the compiler, in combination with any using directives and aliases, to perform type resolution. When those types are found, a marker to the type in A.dll is included in the IL. If A.dll is not used at all the reference is silently dropped.

没有code复制 - 只有合格的名字等 - 因此你还需要部署A.DLL旁边的B.DLL（或在GAC）

No code is copied - only qualified names etc - hence you still need to deploy A.dll alongside your B.dll (or in the GAC).

在运行时，当标记在A.DLL类型被发现，融合尝试加载并验证A.DLL（有复杂的规则和可选的间接这里） - 一旦装好了解决指定的类型，并继续（使用从A.DLL的类型）。

At runtime, when the marker to a type in A.dll is found, "fusion" attempts to load and verify A.dll (there are complex rules and optional indirections here) - once loaded it resolves the type specified and continues (using the type from A.dll).

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