I have spent the past two weeks doing research on the best
implementation for a school project. We are creating a Calendar/
ToDoList/Academics tracker customized to our institution. We chose to
make a C# WinForms application using NHibernate to maintain
persistency with a database.

We are having trouble implementing a 3 tiered application and getting
confused using OOP vs. Repositories. Currently, after authentication,
the database is queried and a static User object is created which
contains a list of groups, events, and tasks. However, when I try to
display the items in separate GUI forms, the references are null. I
think this is related to lazy loading, but I don't know.

I have a feeling that my static user object is not the right idea. I
am starting to think to not maintain any stale objects, and to use a
repository for each display and use Refresh() to keep the data
persistent. Am I on the right track with this thinking? Where do I
store the authenticated user information? And how to I pass that to
each repository to only retrieve data pertinent to the user?

Any guidance you all could provide would greatly help a struggling
student.

Thanks