DependencyProperty和Normal属性之间的主要区别 [英] Main diffrence between DependencyProperty and normal Property

问题描述

有人告诉我，Dependency属性和Normal属性之间的主要区别是exmaple或DEMO.

Anybody tell me , main difference between Dependency property and normal property  with exmaple or DEMO.

谢谢

Aniruddha acharya

Aniruddha acharya

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推荐答案

简而言之，依赖属性是一种特殊的属性，它参与WPF属性系统.依赖属性提供了一种基于其他输入(例如，样式，动画，模板和 数据绑定.依赖项属性的实际值存储在DependencyObject基类的HashTable中，而不是存储在定义了依赖项属性的类的后备字段中.

In short a dependency property is a special kind of property that participates in the WPF property system. Dependency properties provide a way to compute the value of a property based on the value of other inputs such as styles, animations, templates and data binding. The actual value of a dependency property is stored in a HashTable in the DependencyObject base class rather than in a backing field of the class where the dependency property is defined.

例如，TextBlock的Foreground属性是一个依赖项属性，这意味着您可以绑定到此属性:

For example, the Foreground property of a TextBlock is a dependency property which means that you can bind to this property:

<TextBlock Text="..." Foreground="{Binding SomeSourceProperty}" />

您还可以设置其样式:

        <TextBlock Text="...">
            <TextBlock.Style>
                <Style TargetType="TextBlock">
                    <Setter Property="Foreground" Value="Green" />
                </Style>
            </TextBlock.Style>
        </TextBlock>

如果Foreground是普通的CLR属性，那么您将无法执行任何操作.

You wouldn't be able to do any of this if Foreground had been an ordinary CLR property.

请参阅以下链接以获取更多信息:

Please refer to the following links for more information:

依赖项属性概述: https://msdn.microsoft.com/zh-CN/library/ms752914%28v=vs.110%29.aspx
什么是依赖项属性?: http://stackoverflow.com/Questions/617312/什么是依赖属性
依赖项属性值如何存储在dependencyObject中?:

Dependency Properties Overview: https://msdn.microsoft.com/en-us/library/ms752914%28v=vs.110%29.aspx
What is a dependency property?: http://stackoverflow.com/questions/617312/what-is-a-dependency-property
how dependency property values are stored inside dependencyObject?: https://social.msdn.microsoft.com/Forums/vstudio/en-US/141db11a-e14c-4ab9-8057-edd843d31bc1/how-dependency-property-values-are-stored-inside-dependencyobject?forum=wpf

希望有帮助.

Hope that helps.

请记住，通过将有用的帖子标记为答案来关闭话题，然后在遇到新问题时开始新话题.请不要在同一线程中问几个问题.

Please remember to close your threads by marking helpful posts as answer and then start a new thread if you have a new question. Please don't ask several questions in the same thread.

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