mef

I'm trying to use MEF in Windows 8. In order to build up my AssemblyCatalog for the container, I need a reference to the assembly. In the past, I would have just done this: var catalog = new AssemblyCatalog(typeof(App).Assembly); Mysteriously, the Assembly property no longer exists on the Type object. Anybody know of a good work around? Is there another way to get the assembly? I could load it using Assembly.Load , but I would need the name of the assembly. I can't get that from the type either. Is using a DirectoryCatalog a possible alternate? I don't like the idea, but I'll do what I need to

I've just started playing around with Managed Extensibility framework. I've got a class that's exported and a import statement: [Export(typeof(IMapViewModel))] [ExportMetadata("ID",1)] public class MapViewModel : ViewModelBase, IMapViewModel { } [ImportMany(typeof(IMapViewModel))] private IEnumerable<IMapViewModel> maps; private void InitMapView() { var catalog = new AggregateCatalog(); catalog.Catalogs.Add(new AssemblyCatalog(typeof(ZoneDetailsViewModel).Assembly)); CompositionContainer container = new CompositionContainer(catalog); container.ComposeParts(this); foreach (IMapViewModel item in

Can someone please explain the difference between SatisfyImportsOnce and ComposeParts and why one would work where the other doesn't? Specifically I have a MVC Web application that I am using MEF in. Below is some code (from that application) that works when I use SatisfyImportsOnce but doesn't when I use ComposeParts . My understanding is that ComposeParts creates composable parts from an array of attributed objects and composes them in the specified composition container and that SatisfyImportsOnce composes the specified part by using the specified composition service. To my simple monkey

I've got a very simple app with a single export and multiple imports for the same type. After I call ComposeParts I can see that the import worked in the same class where I called ComposeParts from - the MyService property has been hooked up. The problem is that I have another UserControl that needs access to MyService and the property isn't set - it's in the same package etc. but it's not instatiated at the time I call ComposeParts. If I make my CompositionContainer public / static and call ComposeParts and pass the UserControl the MyService property is set but that's a horrible solution. Can

We are creating an application which supports plugins using MEF. We are determining what type of plugins the user is able to create, and want to use dependency injection to provide this type of plugin with the data it needs. For example, we make a plugin that is able to display a list. To achieve this, it needs the existing instance of the IRepository for the type of data the list will display. The IRepository is created somewhere else in a datacontext class, so we are unable to let MEF itself create an instance of the IRepository. My idea is to inject the existing instance of the IRepository