TypeLoadException：程序集“DynamicProxyGenAssembly2”中的类型“Castle.Proxies.IComponentProxy”正在尝试实现无法访问的接口

Question

我想记录用户界面方法的调用。

我的想法是拦截继承自System.Windows.Forms.Form的MyUserInterface类。

但是，我得到了 TypeLoadException：来自程序集“DynamicProxyGenAssembly2”的类型“Castle.Proxies.IComponentProxy”正在尝试实现无法访问的接口

如何解决这个问题？

我在注册时遗漏了什么吗？

谢谢！

我还将代码保存在小提琴上。你可以尝试跑步。

using System;
using Autofac;
using Autofac.Extras.DynamicProxy;
using Castle.DynamicProxy;
public class Program
{
    public static void Main()
    {
        ContainerBuilder builder = new ContainerBuilder();      
        builder.RegisterType<MyInterceptor>();
        builder.RegisterType<MyUserInterface>().As<IMyUserInteraface>()
            .EnableInterfaceInterceptors()
            .InterceptedBy(typeof(MyInterceptor));          

        var container = builder.Build();
        var ui = container.Resolve<IMyUserInteraface>();
        ui.Show();
    }       
}
public class MyInterceptor : IInterceptor
{
    public void Intercept(IInvocation invocation)
    {
        Console.WriteLine("UI intercepted and logged");
        invocation.Proceed();
    }
}
//If MyUserInterface inherit Form, will get TypeLoadException.
//TypeLoadException: Type 'Castle.Proxies.IComponentProxy' from assembly 'DynamicProxyGenAssembly2, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' is attempting to implement an inaccessible interface.
//public class MyUserInterface : Form, IMyUserInteraface
public class MyUserInterface : IMyUserInteraface
{
    public void Show()
    {
        Console.WriteLine("Show something");
    }
}
public interface IMyUserInteraface
{
    void Show();
}

我曾尝试删除继承表格。然后就可以了。 但MyUserInterface必须继承自Form。

Answer 1

代码在这里

目前，通过在ProxyGenerator中使用CreateInterfaceProxyWithTarget解决。

using System;
using Autofac;
using Autofac.Extras.DynamicProxy;
using Castle.DynamicProxy;
using System.Windows.Forms;

public class Program
{
    public static void Main()
    {
        var builder = new ContainerBuilder();
        //builder.RegisterType<MyInterceptor>();
        //builder.RegisterType<MyUserInterface>().As<IMyUserInteraface>()
        //    .EnableInterfaceInterceptors()
        //    .InterceptedBy(typeof(MyInterceptor));

        var generator = new ProxyGenerator();
        var myUserInterface = new MyUserInterface();
        var userInterfaceProxy = generator.CreateInterfaceProxyWithTarget<IMyUserInteraface>(myUserInterface, new MyInterceptor());

        builder.RegisterInstance(userInterfaceProxy).As<IMyUserInteraface>();

        var container = builder.Build();
        var ui = container.Resolve<IMyUserInteraface>();
        ui.Run();
    }
}
public class MyInterceptor : IInterceptor
{
    public void Intercept(IInvocation invocation)
    {
        Console.WriteLine("UI intercepted and logged");
        invocation.Proceed();
    }
}

public class MyUserInterface : Form, IMyUserInteraface
{
    public void Run()
    {
        Console.WriteLine("Show something");
    }
}
public interface IMyUserInteraface
{
    void Run();
}