Pro WPF 4.5 in VB: Windows Presentation Foundation in .NET 4.5

CHAPTER 4

Dependency Properties

Every .NET programmer is familiar with properties and events, which are core parts of .NET’s object abstraction. Few would expect WPF, a user interface technology, to change either of these fundamentals. But surprisingly enough, that’s exactly what WPF does.

In this chapter, you’ll learn how WPF replaces ordinary .NET properties with a higher-level dependency property feature. Dependency properties use more-efficient storage and support additional features such as change notification and property value inheritance (the ability to propagate default values down the element tree). Dependency properties are also the ...