The way Asp.net encourages inscrutable code through spooky action-at-a-distance dependency injection patterns is one of the things I actively dislike about working with C#. Fortunately, you can avoid most of it and be more explicit if you want, it's just not the idiomatic way. There's almost always an escape hatch to ditch the overblown abstraction layers and get down to what's actually happening.

If all else fails there's dotPeek and Reflector...