So far, you’ve seen how to interact directly with an EDM using snippets of code in a console application. Although there is much more to learn about the Entity Framework, at this point it’s time to see how you can use the Entity Framework as part of your applications.
In this chapter, you will explore basic data-binding scenarios in
Windows Forms and Windows Presentation Foundation (WPF). You’ll see how
the Entity Framework objects work with Visual Studio’s data-binding
features in much the same way that
DataSets do, without having to explicitly set
and retrieve the values of each control. The data binding’s change
notification mechanism works automatically with the Entity Framework’s
change tracking, so editing data that was queried through the Entity Data
Model does not require a lot of extra coding. In the examples here, you’ll
bind directly to the results of Entity Framework queries as you learn the
concepts. In Chapter 26,
after you have learned much more about the Entity Framework, I will
address n-tier applications and more robust patterns
for enterprise applications.
The chapter will begin with data binding in Windows Forms and will then move on to the WPF techniques.
To demonstrate data binding of an EDM in a Windows form, let’s build a small application to let you view customers and their reservations as well as edit the customers and add new reservations. ...