autofac

See here & here for why I'm trying to do this. I have a custom module that I'm building (and which is it's own .csproj in the Orchard .sln, as normal) I have a (relatively complex) dependency that I wish to inject into Orchard. Currently if I build and run the code it's perfectly happy until it hits my dependency at which point it null-refs (as I'd expect it to). I can access the admin site and any pages that don't reference the dependency. I add a reference to Autofac to my project. -> All fine. I add the following class: using System; using Autofac; namespace MyCustom.Module.Namespace {

I think I get most things about dependency inversion and using an IoC container, but one thing still does not appear clear to me. How do I use autofac to automate the following factory: public class WidgetFactory { public static IWidget Create(int foo, double bar) { return new Widget(foo, bar); } } public class Widget { private readonly int foo; private readonly double bar; public Widget(int foo, double bar) { this.foo = foo; this.bar = bar; } } elsewhere... public class FoobarUser { public void Method() { var widget = WidgetFactory.Create(3, 4.863); // Do something with my widget // Possibly