在另一个AppDomain中一类的CreateInstance [英] CreateInstance of a Type in another AppDomain

问题描述

我的情况是，我有一个.NET应用程序（比方说，一个控制台应用程序）创建的AppDomain。然后，它需要创建实例，并呼吁那些在AppDomain中类型的方法。每个AppDomain中有哪里是依赖条件应该是一个特定的目录，这是不（甚至接近）控制台应用程序目录下。这里是我的简单的代码：

My scenario is that I have a .net application (let's say a Console App) that creates AppDomains. It then needs to create instances and call methods on Types that are in that AppDomain. Each AppDomain has a specific directory where are it's dependecies should be, which is not under (or even near) the Console Apps directory. Here's my simple code:

string baseDirectory = "c:\foo"; // <- where AppDomain's dependecies 

// set up the app domain
AppDomainSetup setup = new AppDomainSetup();
setup.ApplicationName = DateTime.Now.ToString("hh:MM:ss:ffff");
setup.ApplicationBase = baseDirectory;
setup.PrivateBinPath = baseDirectory;

// create app domain
AppDomain domain = AppDomain.CreateDomain(
    name,
    AppDomain.CurrentDomain.Evidence,
    setup );

// instantiate Type from an assembly in that AppDomain
ObjectHandle handle = domain.CreateInstanceFrom(
    "SampleClassLibrary.dll", // <- exists in "c:\foo" 
    "SomeClassInTheDll" ); 

要CreateInstanceFrom结果在FileNotFoundExcepotion呼叫。的FusionLog表明目录它searchedwere控制台应用程序的目录。它不包括分别设置在该AppDomain中搜索文件夹 - 在baseDirecory变量

The call to CreateInstanceFrom results in a FileNotFoundExcepotion. The FusionLog shows that the directories it searchedwere the Console applications directories. It did not include search folders that were set from the AppDomain - in the "baseDirecory" variable.

我在做什么错了？有另一种方式来执行，生活在另一个AppDomain中的代码？

What am I doing wrong? Is there another way to execute code that lives in another AppDomain?

谢谢...

推荐答案

一个解决方法是将完整路径传递给.CreateInstanceFrom电话：

One workaround would be to pass the full path to the .CreateInstanceFrom call:

ObjectHandle handle = domain.CreateInstanceFrom( 
    baseDirectory + @"\SampleClassLibrary.dll", // <- exists in "c:\foo"  
    "SomeClassInTheDll" );

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