xviii Microsoft Silverlight 3: A Beginner’s Guide
On the opposite side of the coin, another client contacted me to design a Silverlight
user interface for an existing application that utilized an ASP.NET user interface. Due
to the existing ASP.NET user interface, some of the framework for the redesign was
already in place. However, the improved Silverlight UI took advantage of better graphics
and integrated media. The code that resided in the ASP.NET code-behind pages had to
be migrated to the Silverlight code-behind pages. Thus, the code had to undergo some
changes because not all the code was applicable to Silverlight or a client execution
environment. Additionally, the existing ASP.NET pages communicated directly with
business classes and then, in turn, the database and the application relied on automatic
postbacks. In a Silverlight application, there are no automatic postbacks; hence, the code
had to be modified to accommodate this change, and WCF services had to be created on
the server to fulfill requests coming from the client.
Early chapters in this book introduce Silverlight and the path of technologies leading
up to the development of Silverlight. Chapters progress to illustrate networking and
accessing data with Silverlight. Finally, this book discusses how Silverlight can be used to
display graphics and media. Here’s a breakdown of what you’ll encounter in each chapter:
● Chapter 1 gives a detailed overview of Silverlight and the history of Microsoft
technologies that led up to the development of Silverlight. This chapter also introduces
a simple application created using Silverlight and illustrates the display of the
application in various browsers.
● Chapter 2 ventures out to describe and illustrate the latest technologies available in
the .NET Framework, version 3.5. These technologies include Windows Presentation
Foundation (WPF), Windows Communication Foundation (WCF), Windows Workflow
Foundation (WF), Windows CardSpace, ASP.NET AJAX, and Language Integrated
Query (LINQ).
● Chapter 3 takes a much closer look at the architecture of a Silverlight application
as created using Visual Studio 2008. Topics in this chapter include how to install
Silverlight 3, a quick overview of Visual Studio 2008 and Expression Blend, the most
common languages used to code Silverlight applications, how to integrate Silverlight
3 media with existing ASP.NET AJAX pages, and how to quickly create a Silverlight 3
application and a Silverlight 3 animation.
● Chapters 4 and 5 delve deeper into displaying shapes and graphics using Silverlight.
Chapter 4 also explains how animations are created in Silverlight and how to display
very large, high-resolution graphics using Deep Zoom technology. Chapter 5 explores
Expression Encoder and how to prepare media for display in Silverlight.
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