WPF 绑定到自身
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WPF Bind to itself
提问by Snake
I've got a WPF Window, and somewhere there is a ListViewwhere I bind a List<string>to.
我有一个 WPF Window，在某个地方有一个ListView我将 a 绑定List<string>到的地方。
Now somewhere in my ListViewthere is a TextBoxand the Contentproperty is set to {Binding}.
现在在我的某个地方ListView有一个TextBox并且Content属性设置为{Binding}.
But this is the shorthand. How do I write the full binding to bind to itself?
但这是简写。如何编写完整绑定以绑定到自身？
{Binding Path=Self}doesn't work, neither does {Binding Self}(where the latter is a shortcut for the former).
{Binding Path=Self}不起作用，也不起作用{Binding Self}（后者是前者的捷径）。
回答by Heinzi
Short answer:{Binding}is nota shortcut for "binding to itself" (in the sense of RelativeSource.Self). Rather, {Binding}is equivalent to{Binding Path=.}, which binds to the current source.
简短的回答：{Binding}是不是为“结合自身”（在意义上的快捷方式RelativeSource.Self）。相反，{Binding}相当于{Binding Path=.}，它绑定到当前源。
To elaborate: A binding has a sourceand a path. You can do a "binding to itself", for example, by using
详细说明：绑定具有源和路径。您可以执行“绑定到自身”，例如，通过使用
<myUIControl myProperty="{Binding RelativeSource={RelativeSource Self}, Path=x}" />
This, however, sets the sourceto the control itself, so it will try to access property xof the UI control (rather than property xof the current data context). From how I understood your question, this is not what you want; in particular, it is not what {Binding}does: {Binding}keeps the source as it is (usually the DataContextof some parent element) and binds to the source itself (equivalent to Path=.).
但是，这会将源设置为控件本身，因此它将尝试访问xUI 控件的属性（而不是x当前数据上下文的属性）。从我对你的问题的理解来看，这不是你想要的；特别是，它不是什么{Binding}：{Binding}保持源的原样（通常DataContext是某个父元素的 ）并绑定到源本身（相当于Path=.）。
