WPF MEF和第三方库

Question

I have 3rd party dll and in this dll is such hierarchy: class Node realize interface INode. This dll uses Ninject binding in it. My application uses this dll and Prism and MEF as IoC container. I haven't practice in Prism and MEF before, so one thing I want to do is to bind INode to Node. I don't have access to INode and Node, so write smth like that I can't:

[Export(typeof(INode))]
class Node : INode{...}

In Ninject I would did it in such way:

Bind<INode>().To<Node>();

Can I do something like that in MEF? Thnx.

Answer 1

Have a look at MEF's Convention Model . You can use it for exporting types you don't control. For example:

var registration = new RegistrationBuilder();
registration.ForType<Node>().Export<INode>();
var catalog = new AssemblyCatalog(typeof(Node).Assembly, registration);
var container = new CompositionContainer(catalog);

Another way would be to inherit Node in your own code and export it:

[Export(typeof(INode))]
class MyNode : Node { }