Flexible and Powerful Data Binding with WPF, Part 2
Microsoft has been building data binding frameworks for years. Each one promises to solve our data binding woes forever. We're still waiting for the perfect one—but we're getting closer!
by Walt Ritscher
February 9, 2009
ll applications are dependent on data in some form and most developers find themselves writing reams of data access code. The first article in this series discussed how to control the data binding mechanisms of WPF programmatically. Along with a programmatic interface, WPF also provides a declarative data binding interface, which is the topic of this article.
XAML Binding
It's possible to set up a binding using only XAML. The XAML parser understands how to parse and instantiate many of the WPF framework classes, but doesn't know how to work with non-WPF classes unless they're registered with the parser. Therefore, the first step in using a custom data source is to associate an XML namespace with a CLR namespace. The following XAML snippet shows how to set up an xmlns "sys" namespace for the System namespace in mscorlib and a "local" namespace for a custom assembly:
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ll applications are dependent on data in some form and most developers find themselves writing reams of data access code. The 
