These are in the tutorials section, but I thought I'd provide a table-of-contents.

How to do a good search that will get you targeted answers.


The tutorials below walk through making an application including inheritance, custom events and custom controls, object serialization and more.
Quick and easy custom events
Bulding an application - Part 1 (UserControls)
Building an application - Part 2 (Control communications)

Separating data from GUI - PLUS - serializing the data to XML

WPF for the WinForms developer - Part 1
WPF for the WInforms developer - Part 2