wpf 将当前窗口作为 CommandParameter 传递
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原文地址: http://stackoverflow.com/questions/3504332/
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passing the current Window as a CommandParameter
提问by SwissCoder
how can I pass the window I am currently on as a parameter to a command?
如何将当前所在的窗口作为参数传递给命令？
I like to do this in XAML-markup:
我喜欢在 XAML 标记中这样做：
<Button Command="CommandGetsCalled" CommandParameter="-this?-" />
回答by Daniel Pratt
There are two ways I can of think to do this: Give the window a name (via a x:Nameattribute on the Windowtag, and then construct a binding like this (assumes the name of the window is 'ThisWindow'):
我可以想到两种方法来做到这一点：给窗口一个名称（通过标签上的x:Name属性Window，然后构造一个这样的绑定（假设窗口的名称是“ThisWindow”）：
<Button Command="CommandGetsCalled" CommandParameter="{Binding ElementName=ThisWindow}" />
For something more general (doesn't rely on giving the current Window a name), the binding can be constructed like this:
对于更一般的东西（不依赖于为当前窗口命名），可以像这样构造绑定：
<Button Command="CommandGetsCalled" CommandParameter="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}" />
回答by Rachel
You could try binding to a RelativeSource
您可以尝试绑定到一个 RelativeSource
If you want to pass the Button as a parameter:
如果要将 Button 作为参数传递：
<Button Command="CommandGetsCalled"
CommandParameter="{Binding RelativeSource={RelativeSource Self}}" />
If you want to pass the Window as a parameter:
如果要将 Window 作为参数传递：
<Button Command="CommandGetsCalled"
CommandParameter="{Binding RelativeSource={
RelativeSource AncestorType={x:Type Window}}}" />
回答by The One
In my situation none of the provided answers worked.
在我的情况下，提供的答案都不起作用。
This worked for me:
这对我有用：
<window x:Name="myWindow">
<Button Command="Command" CommandParameter={x:Reference Name=myWindow}/>
</window>
