WinRT (Win 8) Store App XAML Bindings RelativeSourceMode FindAncestor 丢失? [英] WinRT (Win 8) Store App XAML Bindings RelativeSourceMode FindAncestor missing?

问题描述

有人知道 XAML 绑定中 FindAncestor 的新方法"是什么吗?查看 RelativeSourceMode (http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.data.relativesourcemode) 只剩下用于引用 self 或 TemplatedParent 的选项了.FindAncestor 不见了.我想知道我使用 FindAncestor 修复的问题的原因和典型解决方案是什么.

does anybody know what the "new way" of FindAncestor in XAML bindings is? Looking at the RelativeSourceMode (http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.data.relativesourcemode) there are only options left for referencing self or the TemplatedParent. FindAncestor is gone. I'd like to know why and what are the typical solutions to the problems I fixed using FindAncestor.

最好的问候戈普

推荐答案

为什么它不见了?不知道，但我怀疑除了微软没有足够的时间及时实现所有功能"之外，还有其他解释.

Why it's missing? No idea, but I doubt there's an explanation other than "Microsoft did not have enough time to implement all the features in time".

一个简单的解决方法是使用 ElementName 代替，如:

An easy work-around is to use ElementName instead, as in:

Binding={ ElementName=TheNameOfTheAncesor, Path=DataContext.TheViewModelProperyIWantToBindTo }

并向您希望 FindAncestor 绑定指向的祖先添加 x:Name 属性:

And to add an x:Name attribute to the ancestor you wanted your FindAncestor binding to point to:

<TextBlock x:Name="TheNameOfTheAncestor" />

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