IDispatch object that responds to all properties?

Question

I want to create an IDispatch object that returns a value for every property. Ask it for "foo", it returns something. "bar" returns something. "faid1jhgi31jifj" as well.

Any pointers?

Answer 1

You need to override the GetIDsForNames methods with an appropriate implementation that returns a valid DISPID for any input parameters. Then override the Invoke method to ensure to return the correct value based on the dispatch id.

Answer 2

You should also look at IDispatchEx, which is designed to give more flexibility for dynamic interfaces.