How to get the type name from another domain?

Question

Here's an example code:

var setup = new AppDomainSetup(); setup.PrivateBinPath = $"{Directory.GetCurrentDirectory()}\\Libs"; var appDomain = AppDomain.CreateDomain( "имя домена", null, setup ); appDomain.DoCallBack ( AssemblyLoad );

An example of a method in Kalbek:

 private static void AssemblyLoad() { var assembly = Assembly.Load( "Test" ); var type = assembly.GetTypes().Single( t => typeof( НужныйТип).IsAssignableFrom( t ) ); Console.WriteLine( type.FullName ); _typeName = type.FullName; }

The _typeName variable _typeName also static and remains empty. If you make the method not static, then the callback domain will cause an error. How to find out the name of the required type?

Accepted Answer · 2016-09-03T19:20:37

Create an additional class that inherits from MarshalByRefObject and drag AssemblyLoad , _typeName into it, making them non-static.

For unknown reasons, DoCallBack does not work (most likely, it pulls the assembly into the current domain), but CreateInstanceAndUnwrap works:

 class Test : MarshalByRefObject { private Type _typeName; public void AssemblyLoad() { var assembly = Assembly.Load( "Test" ); var type = assembly.GetTypes().Single( t => typeof( НужныйТип).IsAssignableFrom( t ) ); Console.WriteLine( type.FullName ); _typeName = type.FullName; } } // ... var setup = new AppDomainSetup { PrivateBinPath = "Libs" }; var appDomain = AppDomain.CreateDomain("имя домена", null, setup); var test = (Test)appDomain.CreateInstanceAndUnwrap(Assembly.GetExecutingAssembly().FullName, typeof(Test).FullName); test.AssemblyLoad();

This will cause the following problem: if you try to access test._typeName in the current domain, this will test._typeName in loading the Test assembly into it. Since the private path for the current domain is not registered, a FileNotFoundException exception will FileNotFoundException . You will either have to configure the private path for the current domain, or work with the loaded assembly exclusively within the second domain, passing only the results of its work to the outside.

Yes, as long as the assembly is in the same folder as the application, then everything is fine.
But as soon as you PrivateBinPath , the non-static method throws an error.
(If something about assembly loading, then what's in the fusion log?)
System.IO.FileNotFoundException : Дополнительные сведения: Не удалось загрузить файл или сборку "Test" либо одну из их зависимостей. Не удается найти указанный файл.
Дополнительные сведения: Не удалось загрузить файл или сборку "Test" либо одну из их зависимостей. Не удается найти указанный файл.
From what has changed - the location of the file and an indication of this in the setup and the actual static method is converted into a non-static one, everything works fine with a static one.

How to get the type name from another domain?

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