Extensibility Series – WPF & Silverlight Design-Time Code Sharing

There is plenty of new functionality in VS 2010 but not nearly as much information on extending it.  Karl Shifflett published a two part series on creating design times for Silverlight & WPF controls in 2010.  Take a look: https://karlshifflett.wordpress.com/2009/11/20/extensibility-series-wpf-silverlight-design-time-code-sharing-part-i/