Determining all possible AD login return types (i.e. User Not Found, etc.) from a MVC json web service

Question

User93267240 posted

I am working on a MVC Json web service and in the web service I am making a call to Active directory. What I need to do is determine, in my code, all possible common, non-exception, types of login return values possible when an AD user attempts to login. Also, where can I find a list of all common login errors (i.e. User Not Found, etc.) and how to access the login error type in my json web service.