Hi, I have programmed with WPF for more than a year. When I started there weren't so many examples and guidelines to follow, now the situation is much more better.
I would like to ask you some help in listing the best WPF (open) source code examples or projects that you suggest to study in order to learn more about project structure, best practices, etc.
Thank you, Marco
If for you it is enough to have the source available (but not really open regarding the license) I still consider very useful FamilyShow (http://www.vertigo.com/FamilyShow.aspx) and Prism (http://www.codeplex.com/CompositeWPF) for an approach at a different "scale".
Still not really "open", but very interesting
MSDN Reader http://code.msdn.microsoft.com/msdnreader
Although I haven't looked at it much myself, I've heard really good things about Caliburn It's an open source framework to help you build applications in SL and WPF using best practices and patterns such as MVC and MVVM.
You might be interested in the sample applications of the WPF Application Framework (WAF). They show:
View composition
UI Workflow (Wizards)
Command binding / Shortcut Keys
MVVM pattern, Unit Testing
Validation
Entity Framework
Open/Save FileDialog
Print Preview / Print Dialog
Localization