WinRT（Win 8）Store App XAML Bindings RelativeSourceMode FindAncestor missing？

问题描述

有没有人知道XAML绑定中FindAncestor的新方法是什么？查看RelativeSourceMode（）只有参考自己或TemplatedParent的选项。 FindAncestor没了我想知道为什么以及使用FindAncestor修复的问题的典型解决方案是什么。

最好的问候
Gope

解决方案

为什么缺少？不知道，但我怀疑有一个解释，除了微软没有足够的时间实现所有的功能及时。

一个简单的解决方法是使用 ElementName ，如下所示：

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

另外，要为您想要的祖先添加一个 x：Name 属性FindAncestor绑定指向：

 < TextBlock x：Name =TheNameOfTheAncestor/> 
  

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.

Best regardsGope

解决方案

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".

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

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

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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