什么是一个依赖属性？ [英] What is a dependency property?

问题描述

什么是.NET一个依赖属性（尤其是在WPF上下文）。从常规属性的区别是什么？

What is a dependency property in .Net (especially in WPF context). What is the difference from the regular property?

推荐答案

依赖属性是从DependencyObject的派生类的属性，他们是特殊的，而不是简单地使用后备字段来存储他们的价值，他们用一些辅助方法对DependencyObject的。

Dependency properties are properties of classes that derive from DependencyObject, and they're special in that rather than simply using a backing field to store their value, they use some helper methods on DependencyObject.

关于他们的最好的事情是，他们拥有所有的管道的结合内置的数据。如果你绑定的东西给他们，他们就会发生变化时通知它。

The nicest thing about them is that they have all the plumbing for data binding built in. If you bind something to them, they'll notify it when they change.

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