John Papa

John Papa is a Senior .NET Consultant at ASPSOFT and an author of several data access technology books. John has over 10 years' experience in developing Microsoft technologies as an architect, consultant, and a trainer. He is the author of the Data Points column in MSDN Magazine and can often be found speaking at user groups, MSDN Web Casts, and industry conferences such as VSLive and DevConnections. John is a baseball fanatic who spends most of his summer nights rooting for the Yankees with his family and his faithful dog, Kadi. You can contact John at
His new book Data-Driven Services with Silverlight 2 has recently been published.

12 March 2009
12 March 2009

Using Silverlight to Build a Guitar Chord Calculator

Silverlight is so versatile that it is easy to move beyond conventional browser-based applications and even write games. John Papa celebrates the launch of his new book by bringing you a simple Silverlight guitar Chord Calculator to demonstrate features of Silverlight such as Data binding, Media elements, Resources, Transforms, Visual states and Dynamically generated controls. He has placed the complete source on Codeplex, so that you can enhance it if you feel the urge.… Read more