C#: How to create an attribute on a method triggering an event when it is invoked?

Question

Is there a way in C# or .NET in general to create an attribute on a method which triggers an event when the method is invoked? Ideally, I would be able to run custom actions

Answer 1

I don't think there is a way to do it with just an attribute, but using proxy classes and reflection you could have a class that knows to intercept instantiations of the classes in which you have attributed methods.

Then the proxy class can trigger an event whenever the attributed methods are called.