如何将 WPF 绑定与 RelativeSource 结合使用?

问题描述

我如何将 RelativeSource 与 WPF 绑定一起使用，有哪些不同的用例?

How do I use RelativeSource with WPF bindings and what are the different use-cases?

推荐答案

如果要绑定到对象上的另一个属性:

If you want to bind to another property on the object:

{Binding Path=PathToProperty, RelativeSource={RelativeSource Self}}

如果您想获取祖先的属性:

If you want to get a property on an ancestor:

{Binding Path=PathToProperty,
    RelativeSource={RelativeSource AncestorType={x:Type typeOfAncestor}}}

如果你想在模板化的父级上获得一个属性(所以你可以在 ControlTemplate 中进行两种方式的绑定)

If you want to get a property on the templated parent (so you can do 2 way bindings in a ControlTemplate)

{Binding Path=PathToProperty, RelativeSource={RelativeSource TemplatedParent}}

或者更短(这只适用于 OneWay 绑定):

or, shorter (this only works for OneWay bindings):

{TemplateBinding Path=PathToProperty}

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