确定是否继承了WPF DependencyProperty值 [英] Determine if a WPF DependencyProperty value is inherited

问题描述

有人知道如何确定WPF属性的值是否被继承吗?特别是，我试图确定 FrameworkElement 的 DataContext 是从父级继承还是直接在元素本身上设置.

Does anyone know how to determine if the value of a WPF property is inherited? In particular, I'm trying to determine if the DataContext of a FrameworkElement was inherited from the parent or set directly on the element itself.

推荐答案

DependencyPropertyHelper.GetValueSource 将为您提供 ValueSource ，其中包括用于检索 BaseValueSource . BaseValueSource 枚举告诉您 DependencyProperty 从何处获取其值，例如从父项继承，通过样式设置或在本地设置.

DependencyPropertyHelper.GetValueSource will give you a ValueSource, which includes a property for retrieving the BaseValueSource. The BaseValueSource enumeration tells you where the DependencyProperty is getting its value from, such as inherited from parent, set via a style or set locally.

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