Autofac IoC GetInstance method

autofac, c#, dependency-injection

Solution

First you have to build your container and register your services.

var builder = new ContainerBuilder();
builder.RegisterType<MyService>().As<IMyService>(); 
var container = builder.Build();

Then you can get an instance of a registered service using the `Resolve` extension method.

var service = container.Resolve<IMyService>();

Problem

I'm trying to use autofac in my project. So in Mef i could get the instance of an interface with this code: ``` private static CompositionContainer _container; public static void Initialize() { string path = AppDomain.CurrentDomain.BaseDirectory.Contains(@"\bin") ? AppDomain.CurrentDomain.BaseDirectory : Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "bin"); //DirectoryCatalog catalog = new DirectoryCatalog(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "bin"), "*.Data*.dll"); DirectoryCatalog catalog = new DirectoryCatalog(path, "*.dll"); _container = new CompositionContainer(catalog); _container.ComposeParts(); } private static void CheckContainer() { if (_container == null) { Initialize(); } } public static T GetInstance<T>() { CheckContainer(); return _container.GetExportedValue<T>(); } ``` But autofac seems confusing to me... How can i add this feature to my app using autofac? Thanks I changed that code to this: ``` private static ContainerBuilder _container; private static IContainer container; public static void Initialize() { _container = new ContainerBuilder(); var logging = Assembly.Load("StarlightFramework.Logging"); _container.RegisterAssemblyTypes(logging); container = _container.Build(); } public static T GetInstance<T>() { if(container == null) Initialize(); return container.Resolve<T>(); } ``` But i get this error this time: "Could not load file or assembly 'Autofac, Version=2.6.1.841, Culture=neutral, PublicKeyToken=17863af14b0044da' or one of its dependencies. " What might be the problem?

Original source