Chapter 10. Visual Studio: C# Primer
The subject of designers needing to know a little code to enhance user interfaces created in Blend is a pretty contentious issue among certain groups, because Blend has been sold as the collaborative piece for designers and Visual Studio as the piece for developers.
My belief is that while XAML is a dream scripting language in a lot of ways, XAML alone is not enough to allow complete freedom in design implementation, much the same as really complex Flash pieces often rely on some level of ActionScript.
In saying all this, I also strongly ...