Tomasz Janczuk of the Silverlight Web Services team joins John to demonstrate how to implement duplex communication with WCF in Silverlight [http://jpapa.me/sltv34]. Tomasz  demonstrates a how to implement a chat application using WCF, the basics of the polling duplex protocol, when the Net.tcp prot

In this mini episode Jesse Liberty explains Transmedia Storytelling [http://jpapa.me/sltv33] and why he believes that Silverlight [http://silverlight.net] may be the ideal platform for creating Transmedia applications on the web, Windows Phone 7 and eventually set-top boxes. Relevant links: * Jo

I see this question every so often so it makes sense to share it through a quick post. When using the print API in Silverlight 4 [http://channel9.msdn.com/learn/courses/Silverlight4/Overview/Overview/Enabling-Business-Application-Development/] you can run into the dreaded exception: > “System.

In this episode, Kenny Young of the Expression Blend team demonstrates how to make some compelling interactions using Expression Blend 4 for Silverlight 4 [http://jpapa.me/sltv32]. He demonstrates some great examples using the FluidMoveBehavior, FluidLayout, LayoutStates, Transition Effects, and sam

Today, Expression Studio 4 (which includes Expression Blend, SketchFlow, Expression Web, Expression Design, Expression Encoder) launched at the Internet Week conference [http://www.internetweekny.com/events/348] in New York City! There are a ton of new features in these products, some of which we ha