blocks|key|1334832|text|虽然这只是Martin+Harris答案的一个微小的变化，但我想我还是要分享它。我发现为整个集合指定一个命令并发送一个CommandParameter更有用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1334833|<MenuItem.ItemContainerStyle>
++++<Style+TargetType="MenuItem">
+++++++<Setter+Property="Command"+Value="{x:Static+v:ViewModel.CommandForAll}"/>
+++++++<Setter+Property="CommandParameter"+Value="{Binding+ValueForCommand}"/>
++++</Style>
</MenuItem.ItemContainerStyle>|code-block|syntax|javascript|1334834|然后，您可以确定在该命令的处理程序中执行什么操作：|1334835|private+void+CommandForAll_Executed(object+sender,+ExecutedRoutedEventArgs+e)
{
++++var+cmdParam+=+e.Paramater+as+ExpectedType
++++if+(cmdParam+!=+null)
++++++++//DoStuff...
}|1334836|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|$]]

Although this is only a slight variation on Martin Harris's answer, I thought I'd share it anyway. I found it more useful specify a single command for the whole collection and also send along a CommandParameter:

<pre><code>&lt;MenuItem.ItemContainerStyle&gt;
 &lt;Style TargetType="MenuItem"&gt;
 &lt;Setter Property="Command" Value="{x:Static v:ViewModel.CommandForAll}"/&gt;
 &lt;Setter Property="CommandParameter" Value="{Binding ValueForCommand}"/&gt;
 &lt;/Style&gt;
&lt;/MenuItem.ItemContainerStyle&gt;
</code></pre>

Then you can determine what to do in the handler for the command:

<pre><code>private void CommandForAll_Executed(object sender, ExecutedRoutedEventArgs e)
{
 var cmdParam = e.Paramater as ExpectedType
 if (cmdParam != null)
 //DoStuff...
}
</code></pre>

blocks|key|1550388|text|我意识到我是在事后才回答这个问题的，但我遇到了同样的问题，之前的答案似乎使绑定到多个不同的命令变得困难。我得到的解决方案与MatrixManAtYrService非常相似，分为3个部分：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1550389|1)使用ItemContainerStyle属性将命令绑定到ViewModel中的命令--这与前面的答案相同。一个例外是我将CommandParameter绑定到MenuItem。|1550390|<Setter+Property="CommandParameter"+Value="{Binding+RelativeSource={RelativeSource+Self}}"/>|code-block|syntax|javascript|1550391|2)创建自定义类来定义每个MenuItem的外观和行为。菜单的ItemsSource将被设置为一个列表。这与其他答案相同。但是，在我的实现中，我为该类指定了一个要在调用MenuItemCommand时执行的操作。我还包含了一个允许禁用MenuItem的布尔值。|1550392|public+class+MenuAction
{
++++public+string+Name+{+get+=>+name;+set+=>+name+=+value;+}
++++public+Action+Action+{+get+=>+action;+set+=>+action+=+value;+}
++++public+bool+CanExecute+{+get+=>+canExecute;+set+=>+canExecute+=+value;+}
}|1550393|3)在命令实现中，将控制路由到MenuAction中的代理。|1550394|public+void+HandleCommand(object+sender)
{
++++MenuItem+clickedMenuItem+=+sender+as+MenuItem;
++++MenuAction+menuAction+=+clickedMenuItem?.DataContext+as+MenuAction;
++++if(menuAction+!=+null)
++++++++menuAction.Action();
}

public+bool+CanMenuItemExecute(object+sender)
{
++++MenuItem+clickedMenuItem+=+sender+as+MenuItem;
++++MenuAction+menuAction+=+clickedMenuItem?.DataContext+as+MenuAction;
++++if+(menuAction+!=+null)
++++++++return+menuAction.CanExecute;
++++else
++++++++return+false;
}|1550395|这应该允许您在列表中定义命令的所有行为。虽然它在技术上绑定到单个命令，但在功能上类似于拥有多个不同的命令。同样的方法也适用于嵌套的MenuItems和HierarchicalDataTemplates，但需要进行一些调整。|1550396|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

I realize I'm answering this quite a bit after the fact, but I ran into the same problem and the previous answers seemed to make binding to multiple different commands difficult. The solution I arrived is very similar to MatrixManAtYrService's and works in 3 parts:

1) Bind the command using the ItemContainerStyle property to a command in the ViewModel -- this is the same as the previous answers. One exception is that I bind the CommandParameter to the MenuItem.

<pre><code>&lt;Setter Property="CommandParameter" Value="{Binding RelativeSource={RelativeSource Self}}"/&gt;
</code></pre>

2) Create a custom class to define the look and behavior of each MenuItem. The ItemsSource of the menu will be set to a list of these. This is the same as other answers. However, in my implementation I have given the class an Action to be executed when the MenuItemCommand is invoked. I also included a boolean that will allow the MenuItem to be disabled.

<pre><code>public class MenuAction
{
 public string Name { get =&gt; name; set =&gt; name = value; }
 public Action Action { get =&gt; action; set =&gt; action = value; }
 public bool CanExecute { get =&gt; canExecute; set =&gt; canExecute = value; }
}
</code></pre>

3) In the command implementation route control to the delegates in MenuAction.

<pre><code>public void HandleCommand(object sender)
{
 MenuItem clickedMenuItem = sender as MenuItem;
 MenuAction menuAction = clickedMenuItem?.DataContext as MenuAction;
 if(menuAction != null)
 menuAction.Action();
}

public bool CanMenuItemExecute(object sender)
{
 MenuItem clickedMenuItem = sender as MenuItem;
 MenuAction menuAction = clickedMenuItem?.DataContext as MenuAction;
 if (menuAction != null)
 return menuAction.CanExecute;
 else
 return false;
}

</code></pre>

This should allow you to define all of the behavior of your commands in a list. While it is technically binding to a single command it is functionally similar to having multiple different commands. The same method should also work with nested MenuItems and HierarchicalDataTemplates with some tweaking.

I have a context menu. It's bound to some collection and it has a defined ItemTemplate like this:

<pre><code>&lt;ContextMenu
 ItemsSource={Binding ...}
 ItemTemplate={StaticResource itemTemplate}
 /&gt;
</code></pre>

itemTemplate is a simple DataTemplate with a TextBlock:

<pre><code>&lt;DataTemplate x:Key="itemTemplate"&gt;
 &lt;TextBlock Text={Binding ...} /&gt;
&lt;/DataTemplate&gt;
</code></pre>

How do I bind Command property for MenuItem to the underlying object's property?

Specify Command for MenuItem in a DataTemplate

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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我有一个上下文菜单。它绑定到某个集合，并且它有一个定义的ItemTemplate，如下所示：<ContextMenu ItemsSource={Binding ...} ItemTemplate={StaticResource itemTemplate} />itemTemplate是一个带有Text...

问为DataTemplate中的MenuItem指定命令
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