blocks|key|2090157|text|每个控件都有一个parent属性，它告诉你谁真正“拥有”了这个控件。你可以同时使用它和类型转换来访问你的myWindow的myMethod。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2090158|您还可以像这样使用事件处理程序的发送方参数：|2090159|(sender+as+MyWindow).myMethod()|code-block|syntax|javascript|2090160|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Every control has a parent property which tells you that who actually "owns" this control. You can use that along side with type casting to access your myWindow's myMethod. 
You could also use the sender argument of your event handler like this: 

<pre><code>(sender as MyWindow).myMethod()
</code></pre>

blocks|key|5068730|text|我建议学习Routed+Events和Routed+Commands+-这是他们应该做的事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|5068731|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms742806.aspx|1|http://msdn.microsoft.com/en-us/magazine/cc785480.aspx^0|5|D|0|J|F|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

I recommend learning about <a href="http://msdn.microsoft.com/en-us/library/ms742806.aspx" rel="nofollow">Routed Events</a> and <a href="http://msdn.microsoft.com/en-us/magazine/cc785480.aspx" rel="nofollow">Routed Commands</a> - this is the sort of thing they're meant to do.

blocks|key|5068763|text|可以在窗口中创建命令，并将按钮的command属性设置为此命令的名称。单击该按钮将触发命令，而不需要引用父窗口。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5068764|This+tutorial+explains+everything+very+clearly.|offset|length|5068765|entityMap|0|LINK|mutability|MUTABLE|url|https://web.archive.org/web/20121102095816/http://www.switchonthecode.com/tutorials/wpf-tutorial-command-bindings-and-custom-commands^0|0|0|1B|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

You can create a command in the window and set the Command property of the button to the name of this command. Clicking the button will fire the command, without a need for a reference to the parent window.

<a href="https://web.archive.org/web/20121102095816/http://www.switchonthecode.com/tutorials/wpf-tutorial-command-bindings-and-custom-commands" rel="nofollow noreferrer">This tutorial explains everything very clearly.</a>

blocks|key|3657545|text|尝试下面这样的静态辅助方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3657546|++++public+static+T+GetParentOfType<T>(DependencyObject+currentObject)
++++++++where+T+:+DependencyObject
++++{
++++++++//+Get+the+parent+of+the+object+in+question
++++++++DependencyObject+parentObject+=+GetParentObject(currentObject);

++++++++if+(parentObject+==+null)+
++++++++++++return+null;

++++++++//+if+the+parent+is+the+type+then+return
++++++++T+parent+=+parentObject+as+T;
++++++++if+(parent+!=+null)
++++++++{
++++++++++++return+parent;
++++++++}
++++++++else+//+if+not+the+type,+recursively+continue+up
++++++++{
++++++++++++return+GetParentOfType<T>(parentObject);
++++++++}
++++}
++++public+static+DependencyObject+GetParent(DependencyObject+currentObject)
++++{
++++++++if+(currentObject+==+null)
++++++++++++return+null;
++++++++//+Convert+the+object+in+question+to+a+content+element
++++++++ContentElement+contentEl+=+currentObject+as+ContentElement;

++++++++if+(contentEl+!=+null)
++++++++{
++++++++++++//+try+dependencyobject
++++++++++++DependencyObject+parent+=+System.Windows.ContentOperations.GetParent(contentEl);
++++++++++++if+(parent+!=+null)+
++++++++++++++++return+parent;

++++++++++++//+Convert+the+contentEl+to+a+FrameworkContentElement
++++++++++++FrameworkContentElement+frameworkEl+=+contentEl+as+FrameworkContentElement;
++++++++++++//+try+frameworkcontentelement
++++++++++++if+(frameworkEl+!=+null)
++++++++++++++++return+frameworkEl.Parent;
++++++++++++else
++++++++++++++++return+null;
++++++++}

++++++++//+couldn't+get+the+content+element,+so+return+the+parent+of+the+visual+element
++++++++return+System.Windows.Media.VisualTreeHelper.GetParent(currentObject);
++++}|code-block|syntax|javascript|3657547|像这样执行它：|3657548|StaticHelpers.GetParentOfType<Window>(this);|3657549|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Try something like this static helper method:

<pre><code> public static T GetParentOfType&lt;T&gt;(DependencyObject currentObject)
 where T : DependencyObject
 {
 // Get the parent of the object in question
 DependencyObject parentObject = GetParentObject(currentObject);

 if (parentObject == null) 
 return null;

 // if the parent is the type then return
 T parent = parentObject as T;
 if (parent != null)
 {
 return parent;
 }
 else // if not the type, recursively continue up
 {
 return GetParentOfType&lt;T&gt;(parentObject);
 }
 }
 public static DependencyObject GetParent(DependencyObject currentObject)
 {
 if (currentObject == null)
 return null;
 // Convert the object in question to a content element
 ContentElement contentEl = currentObject as ContentElement;

 if (contentEl != null)
 {
 // try dependencyobject
 DependencyObject parent = System.Windows.ContentOperations.GetParent(contentEl);
 if (parent != null) 
 return parent;

 // Convert the contentEl to a FrameworkContentElement
 FrameworkContentElement frameworkEl = contentEl as FrameworkContentElement;
 // try frameworkcontentelement
 if (frameworkEl != null)
 return frameworkEl.Parent;
 else
 return null;
 }

 // couldn't get the content element, so return the parent of the visual element
 return System.Windows.Media.VisualTreeHelper.GetParent(currentObject);
 }
</code></pre>

Execute it like so:

<pre><code>StaticHelpers.GetParentOfType&lt;Window&gt;(this);
</code></pre>

blocks|key|2090258|text|我最终不得不在VB中做的事情是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2090259|为我的自定义命令创建一个新的公共类，因为将我的MainWindow类设置为公共是不可取的：|2090260|Public+Class+Commands
++Public+Shared+myCmd+As+New+RoutedCommand
End+Class|code-block|syntax|javascript|2090261|创建运行所需代码的Execute和CanExecute方法。这两个方法是在后面的MainWindow代码中创建的：|2090262|Class+MainWindow

Private+Sub+myCmdCanExecute(ByVal+sender+As+Object,+ByVal+e+As+CanExecuteRoutedEventArgs)
++e.CanExecute+=+True
++e.Handled+=+True
End+Sub

Private+Sub+myCmdExecuted(ByVal+sender+As+Object,+ByVal+e+As+ExecutedRoutedEventArgs)
++//Do+stuff+here...
++e.Handled+=+True
End+Sub

End+Class|2090263|在MainWindow代码隐藏中创建命令绑定，并将两个处理程序方法添加到绑定中(这是C#和VB之间非常不同的部分)：|2090264|Class+MainWindow
+Public+Sub+New()
++++++//+This+call+is+required+by+the+designer.
++++++InitializeComponent()
++++++//Add+any+initialization+after+the+InitializeComponent()+call.
++++++//Create+command+bindings.
++++++Dim+cb+As+New+CommandBinding(Commands.myCmd)
++++++AddHandler+cb.CanExecute,+AddressOf+myCmdCanExecute
++++++AddHandler+cb.Executed,+AddressOf+myCmdExecuted
++++++Me.CommandBindings.Add(cb)
+End+Sub
End+Class|2090265|将新的自定义命令添加到UserControl上的按钮对象。使用自定义命令，这在XAML中似乎是不可能的，所以我必须在代码隐藏中完成。Commands类需要是公共的，以便可以在此UserControl中访问命令：|2090266|Public+Class+myUserControl
++Public+Sub+New()
++++//This+call+is+required+by+the+designer.
++++InitializeComponent()
++++//+Add+any+initialization+after+the+InitializeComponent()+call.
++++myButton.Command+=+Commands.myCmd
++End+Sub
End+Class|2090267|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|14|8|@]|9|@]|A|$G|H]]|$1|U|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|V|$]]

What I actually ended up having to do in VB:

Create a new Public Class for my custom commands because it was undesirable to have my MainWindow class as Public:

<pre><code>Public Class Commands
 Public Shared myCmd As New RoutedCommand
End Class
</code></pre>

Create the Execute and CanExecute methods that run the desired code. These two methods were created in the MainWindow code behind:

<pre><code>Class MainWindow

Private Sub myCmdCanExecute(ByVal sender As Object, ByVal e As CanExecuteRoutedEventArgs)
 e.CanExecute = True
 e.Handled = True
End Sub

Private Sub myCmdExecuted(ByVal sender As Object, ByVal e As ExecutedRoutedEventArgs)
 //Do stuff here...
 e.Handled = True
End Sub

End Class
</code></pre>

Create the Command binding in the MainWindow code-behind and add the two handler methods to the binding (this is the part that is quite different between C# and VB):

<pre><code>Class MainWindow
 Public Sub New()
 // This call is required by the designer.
 InitializeComponent()
 //Add any initialization after the InitializeComponent() call.
 //Create command bindings.
 Dim cb As New CommandBinding(Commands.myCmd)
 AddHandler cb.CanExecute, AddressOf myCmdCanExecute
 AddHandler cb.Executed, AddressOf myCmdExecuted
 Me.CommandBindings.Add(cb)
 End Sub
End Class
</code></pre>

Add the new custom command to the button object on the UserControl. With a custom command, this did not seem to be possible in XAML, so I had to do it in code-behind. The Commands class needed to be Public so the commands were accessible in this UserControl:

<pre><code>Public Class myUserControl
 Public Sub New()
 //This call is required by the designer.
 InitializeComponent()
 // Add any initialization after the InitializeComponent() call.
 myButton.Command = Commands.myCmd
 End Sub
End Class
</code></pre>

blocks|key|2094610|text|以上这些都很好...但对我来说似乎有点费解。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2094611|我也有类似的问题：我有一个窗口(MainWindow.xaml)，里面有一个UserControl+(SurveyHeader.xaml)，在那个UserControl里面是另一个UserControl+(GetSurveyByID.xaml)。我在MainWindow.xaml中有一个私有的空格，当在GetSurveyByID.xaml中单击一个按钮(btnGetSurvey)时，我想运行这个空格。|2094612|这一行的解决方案对我来说工作得很好。|2094613|this.ucSurveyHeader.ucGetSurveyByID.btnGetSurvey.Click+%2B=+new+RoutedEventHandler(btnGetSurvey_Click);|code-block|syntax|javascript|2094614|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The above is all well and good... but seems a bit convoluted to me...

My similar problem:
 I have a Window (MainWindow.xaml) with a UserControl (SurveyHeader.xaml) in it and inside that UserControl is another UserControl (GetSurveyByID.xaml). I have a private void in MainWindow.xaml that i want to run when a button (btnGetSurvey) is clicked in GetSurveyByID.xaml.

This one line solution worked quite well for me.

<pre><code>this.ucSurveyHeader.ucGetSurveyByID.btnGetSurvey.Click += new RoutedEventHandler(btnGetSurvey_Click);
</code></pre>

I have a UserControl, we'll call it <code>myUC</code>, that is one among several UserControls in the main window (<code>myWindow</code>) of my WPF application. <code>myUC</code> contains a number of standard controls, one of them being a button, we'll call it <code>myButton</code>.

When I click <code>myButton</code>, I would like to execute <code>myMethod()</code>, which exists in the code-behind of myWindow.

The problem being that <code>myUC</code> doesn't have any idea that <code>myWindow</code> even exists, much less that myMethod exists.

How can I send the message: 'Hey, myWindow, wake up. myButton on myUc was just clicked; please run myMethod'?

How can a button click on a UserControl execute a method in the containing Window?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个UserControl，我们称之为myUC，它是我的WPF应用程序主窗口(myWindow)中的几个UserControls之一。myUC包含许多标准控件，其中一个是按钮，我们称之为myButton。当我单击myButton时，我想执行myMethod()，它存在于myWindow的代码隐藏中。问题是myUC根...

问在UserControl上单击一个按钮如何在包含窗口中执行一个方法？
EN

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问在UserControl上单击一个按钮如何在包含窗口中执行一个方法？EN