Data binding is general technique that binds two data/information sources together and maintains synchronization of data.
With WPF, Microsoft has put data binding in the front seat and once
you start learning WPF, you will realize that it's an important aspect
of pretty much
everything you do. If you come from the world of WinForms, then the
huge focus on data binding might scare you a bit, but once you get used
to it, you will
likely come to love it, as it makes a lot of things cleaner and
easier to maintain.
Data binding in WPF is the preferred way to bring data from your
code to the UI layer. Sure, you can set properties on a control manually
or you can
populate a ListBox by adding items to it from a loop, but the
cleanest and purest WPF way is to add a binding between the source and
the destination UI
In the next chapter, we'll look into a simple example where data
binding is used and after that, we'll talk some more about all the
concept of data binding is included pretty early in this tutorial,
because it's such an integral part of using WPF, which you will see once
you explore the
rest of the chapters, where it's used almost all of the time.
However, the more theoretical part of data binding might be too
heavy if you just want to get started building a simple WPF application.
In that case I
suggest that you have a look at the "Hello, bound world!" article to
get a glimpse of how data binding works, and then save the rest of the
articles for later, when you're ready to get some more theory.