如何正确绑定菜单项？ [英] How to correctly bind menu items?

问题描述

如何正确地绑定动态创建的菜单项列表。我尝试了几件事，但似乎没有任何工作。我得到了正确的名称列表，但是我的ViewSwitchCommand似乎没有正确地触发。

How do i correctly bind a dynamical created list of menu items. I have tried several thing but none seem to work. I get the proper list of names, however my ViewSwitchCommand does not seem to fire correctly.

<MenuItem Foreground="White" Header="Names" ItemsSource="{Binding Player.ToonNames}" Command="{Binding ViewSwitchCommand}" CommandParameter="{Binding Header}"/>

但是，如果我不动态做它，这样做，所有的工作都可以得到它工作

However if i don't do it dynamically and do it like this then everything works just fine can get it to work

<MenuItem Foreground="White" Header="Names">
<MenuItem Foreground="Black" Header="Chat" Command="{Binding ViewSwitchCommand}"     CommandParameter="player1" />
<MenuItem Foreground="Black" Header="Craft" Command="{Binding ViewSwitchCommand}" CommandParameter="player2" />
</MenuItem>

命令参数期望一个字符串..不知道是否是...希望这是一些东西简单的我只是忽略

The command parameter expects a string.. not sure if that is it... hopefully this is something simple i'm just overlooking

推荐答案

此代码适用于我：

<MenuItem Header="Names" ItemsSource="{Binding Player.ToonNames}">
    <MenuItem.ItemContainerStyle>
        <Style TargetType="MenuItem">
            <Setter Property="Command" Value="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=MenuItem}, Path=DataContext.ViewSwitchCommand}" />
            <Setter Property="CommandParameter" Value="{Binding}" />
        </Style>
    </MenuItem.ItemContainerStyle>
</MenuItem>

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