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    <pre><code>using System; using System.ComponentModel.Composition; using System.ComponentModel.Composition.Hosting; using System.ComponentModel.Composition.ReflectionModel; using System.Reflection; using System.Linq; namespace ConsoleApplication1 { internal class Program { private static void Main(string[] args) { var catalogs = new AggregateCatalog(); var catalog = new System.ComponentModel.Composition.Hosting.AssemblyCatalog(Assembly.GetExecutingAssembly()); catalogs.Catalogs.Add(catalog); var sessionModel = new SessionModel(3); var container = new CompositionContainer(catalog); ISomeService someService = container.GetExportedValueOrDefault&lt;ISomeService&gt;(sessionModel.cname); if (someService != null) { someService.DoSomething(); } } } public class SessionModel { private int AValue { get; set; } //[Import("One",typeof(ISomeService))] //public ISomeService SomeService { get; private set; } public SessionModel(int aValue) { AValue = aValue; // of course, there is much more to do here in reality: } public string cname { get { return "One"; } } } public class SessionModel1 { private int AValue { get; set; } //[Import("Two",typeof(ISomeService))] //public ISomeService SomeService { get; private set; } public SessionModel1(int aValue) { AValue = aValue; } public string cname { get { return "Two"; } } } public interface ISomeService { void DoSomething(); } [Export("One",typeof(ISomeService))] public class SomeService : ISomeService { public SomeService() { Console.WriteLine("Some Service Called"); } public void DoSomething() { Console.WriteLine("DoSomething called"); Console.ReadKey(); } } [Export("Two",typeof(ISomeService))] public class SomeService1 : ISomeService { public SomeService1() { Console.WriteLine("Some Service1 Called"); } public void DoSomething() { Console.WriteLine("DoSomething called 1"); Console.ReadKey(); } } } </code></pre>
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    1. POHow to export parts from an object not instantiated by the MEF container
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    1. USAmit Bagga
    1. USAmit Bagga
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    1. COThis solution does not incorporate MEF at all, does it?
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      1. USoddparity
    2. CODon't take me wrong is MEF magic? No!! its all about registering the Types with the container and get getting the value of a type by using extension methods. If I know the type i am looking for on an object then why register that with the container and get the value. All you are trying to achieve is to make it more generic and abstract. The example above does that but through a custom extension method. I am not a Master in MEF but could not figure out how can i get exported value of a property if the type is not registered with the container.
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    3. COI would suggest you a build an interface with the a property type of ISomeService and implement the same with the various SessionModel class and convert your session model object to the Interface Type and you will have access to the property you are looking on the object. Don't you think this is more simple and clean approach.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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