C＃Lambda表达式输入参数类型

Question

我有以下Unity代码 -

运行时的InjectionFactory构造函数如何获得实际的容器实例（c）？

container.RegisterType<DbProviderFactory>(new InjectionFactory(c => 
                    DbProviderFactories.GetFactory(c.Resolve<IApplicationSettings>().GetValue("DatabaseProviderName"))));

完成后，请参阅下面的客户端类定义 -

public static class IocConfig
   { 
        public static void RegisterDependencies(IUnityContainer container)
        {
            IocConfig.container = container;

            container.RegisterType<IApplicationSettings, ConfigAppSettings>();
            container.RegisterType<IViewModelMapper, SimpleRoomViewModelMapper>();
            container.RegisterType<IRoomRepository, AdoNetRoomRepository>();
            container.RegisterType<RepositoryRoomViewModelService>(new ContainerControlledLifetimeManager());
            container.RegisterType<IRoomViewModelReader, RepositoryRoomViewModelService>();
            container.RegisterType<IRoomViewModelWriter, RepositoryRoomViewModelService>();

            container.RegisterType<DbProviderFactory>(new InjectionFactory(c => 
                DbProviderFactories.GetFactory(c.Resolve<IApplicationSettings>().GetValue("DatabaseProviderName"))));
        }

        private static IUnityContainer container;
    }

以下是InjectionFactory的定义 -

public class InjectionFactory : InjectionMember
    {
        private readonly Func<IUnityContainer, Type, string, object> factoryFunc;

        /// <summary>
        /// Create a new instance of <see cref="InjectionFactory"/> with
        /// the given factory function.
        /// </summary>
        /// <param name="factoryFunc">Factory function.</param>
        public InjectionFactory(Func<IUnityContainer, object> factoryFunc)
            : this((c, t, s) => factoryFunc(c))
        {
        }

        /// <summary>
        /// Create a new instance of <see cref="InjectionFactory"/> with
        /// the given factory function.
        /// </summary>
        /// <param name="factoryFunc">Factory function.</param>
        public InjectionFactory(Func<IUnityContainer, Type, string, object> factoryFunc)
        {
            Guard.ArgumentNotNull(factoryFunc, "factoryFunc");
            this.factoryFunc = factoryFunc;
        }