An Alternative To Stacking Many KnownType Attributes

If you find yourself having to stack many KnownType attributes on a class that is sent over the wire for WCF communication, there is a slick alternative.

Instead of something like this:

You can specify a method to reflectively return all of the types for you:

And here is the GetDerivedTypes() extension method:

Now we no longer have to add new KnownType attibutes every time we have a new subtype. Nice, eh?