Hello Windows 8 XAML developer. XAML is a declarative UI language; it's most powerful feature is surely data binding. But, I admit, with such power comes a lot of things to know. Let’s take a minute to step back, smell the roses, and build out some simple bindings.
Read to learn?
Referencing a control
Referencing a control in XAML is referencing a class. Declare it in XAML and the class’ constructor is executed. Your control is now in the logical tree. Every control is part of a hierarchy, with the top-most control being the page element.
This is a great and very, very easy to read and grok into to XAML binding. If you're new to XAML binding you've got to read this.