Can someone provide a quick App.config/Web.config tutorial?

Question

I\'ve used these two configuration files many times before, but I\'ve never taken the time to fully understand how they really work. As most people do, I understand the bas

Answer 1

The app/ web.config that is used is the one that starts the process. Easier if I give an example:

• Assume all projects in a solution have an app or web.config.
• A test in project A calls code in project B that calls a web service in project C which calls code in project D.

In this case code in project A and B will use the app.config in project A. Code in project C and D will use the web.config in project C.

Answer 2

The underlying answer to all of your questions is the same: Unless you set up something unusual, all assemblies in your project will read from the same configuration file. In a web app, they will all read from "web.config". In any other project type, they will read from the starting assembly's config file.