Dynamically implementing an interface in .NET 4.0 (C#)

Question

With the new dynamic capabilities in .NET 4.0, it seems like it should be possible to dynamically implement an interface, e.g. given:

public interface IFoo 
         


        

Answer 1

The opensource framework Impromptu-Interface was designed to do this. It generates a cached lightweight proxy with a static interface and uses the dlr to forward the invocation to the original object.

using ImpromptuInterface;

public interface ISimpeleClassProps
{
    string Prop1 { get;  }

    long Prop2 { get; }

    Guid Prop3 { get; }
}

-

dynamic tOriginal= new ExpandoObject();
tOriginal.Prop1 = "Test";
tOriginal.Prop2 = 42L;
tOriginal.Prop3 = Guid.NewGuid();

ISimpeleClassProps tActsLike = Impromptu.ActLike(tOriginal);