访问资源说明中的菜单 [英] Accessing menus in resource dicitionaries

问题描述

如何访问资源词典中的菜单？



在运行期间，主菜单应仅显示与当前视图关联的菜单。另外，我想在相应的视图中使用一些菜单作为上下文菜单。我不想两次或两次以上写相同的菜单，所以我想把它们放到资源词典中以便在需要时重复使用它们。



我想要一个主应用程序像这样的菜单：

 <   StackPanel     DockPanel.Dock   = 热门   >  
 <  菜单 >  
 
 <   MenuItem    标题  =  _代理 >  
 <   MenuItem    < span class =code-attribute>标题  =  _ Connect   命令  =  {Binding Path = ProxyConnection.Connect}    IsChecked   =  {Binding Path = ProxyConnection.IsConnected}    /  >  
 <   MenuItem    标题  =  _Disconnect   命令  =  {Binding Path = ProxyConnection.Disconnect}    /  >  
 <   / MenuItem  >  
 
 <   MenuItem    标题  =  _ foo >  
 <   MenuItem    标题  =  _ bar   命令  =   {Binding Path = Foo.Bar}    /  >  
 <   MenuItem    标题  =  _ vodoo   命令  =  {Binding Path = Foo.Vodoo}    /  >  
 <   / MenuItem  >  
 
 <   /菜单 >  
 ... 

我将菜单放入resitce dicitonary Menus.xaml中，如

 <   MenuItem    标题  =  _Proxy    x：Key   =  proxyMenu   >  
 <   MenuItem    标题  =  _ Connect   命令  =  {Binding Path = ProxyConnection.Connect}    IsChecked   =  {Binding Path = ProxyConnection.IsConnected}   < span class =code-keyword> /  >  
 <   MenuItem    标题  =  _断开   命令  =  {Binding Path = ProxyConnection.Disconnect}    /  >  
 <   / MenuItem  >  
 
 
  <   MenuItem    标题  =  _ foo    x：键  =  fooMenu   >  
 <   MenuItem    标题  =   _ bar   逗号nd   =  {Binding Path = Foo.Bar}    /  >  
 <   MenuItem    标题  =  _ vodoo   < span class =code-attribute>命令  =  {Binding Path = Foo.Vodoo}    /  >  
 <   / MenuItem  >  

我使用这样的资源目录，或者我不是吗？

 <   Window.Resources  >  
 <   ResourceDictionary  >  
 <   ResourceDictionary.MergedDictionaries  >  
 <   ResourceDictionary     Source   =  Menus.xaml >  <   / ResourceDictionary  >  
 <   / ResourceDictionary.MergedDictionaries  >  
 <   / ResourceDictionary  >  
 <   / Window.Resources  >  

那么？

< pre lang =xml> < StackPanel DockPanel.Dock = Top >
< 菜单 >
<！ - - 以下引发异常 - >
< MenuItem ItemsSource = {StaticResource proxyMenu} / >

我尝试了不同的绑定但没有任何工作，因为我想要的。菜单没有出现。





感谢任何提示。

Andy

解决方案

<$ c的 ItemsSource 属性$ c>菜单或 MenuItem 需要其他项目的集合。

所以你的绑定不起作用。 />


您可以在 Menus.xaml中定义 a CompositeCollection MenuItem '并将这些绑定到菜单或 MenuItem 像这样：

 <   CompositeCollection     x：key   =  MenuTest >  
 <   MenuItem    标题  =  _ Proxy  >  
 <   MenuItem    标题  =  _ Connect    /  >  
 <   MenuItem    标题  =  _Disconnect    /  >  
 <   / MenuI tem  >  
 <   / CompositeCollection  >  

在你的窗口中：

 <  菜单    ItemsSource   =  {StaticResource MenuTest}    /  >  

或

 < ;  菜单 >  
  <   MenuItem    标题  =  TestMenu    ItemsSource   =  {StaticResource MenuTest}    /  >  
 <   /菜单 >  

希望这有帮助，



Thomas。

How do I access menus in resource dictionaries?

During runtime the main menu should only show the menus associated to the current view. Also I want to use some of the menus as context menus inside the corresponding views. I do not want to write the same menues two or more times, so I thought about putting them into resource dictionaries to reuse them if needed.

I want a main application menu like this:

<StackPanel DockPanel.Dock="Top" >
    <Menu>

        <MenuItem Header="_Proxy">
            <MenuItem Header="_Connect" Command="{Binding Path=ProxyConnection.Connect}" IsChecked="{Binding Path=ProxyConnection.IsConnected}" />
            <MenuItem Header="_Disconnect" Command="{Binding Path=ProxyConnection.Disconnect}" />
        </MenuItem>

        <MenuItem Header="_foo">
            <MenuItem Header="_bar" Command="{Binding Path=Foo.Bar}" />
            <MenuItem Header="_vodoo" Command="{Binding Path=Foo.Vodoo}" />
        </MenuItem>

    </Menu>
    ...

I put the menus in a resorce dicitonary Menus.xaml like

<MenuItem Header="_Proxy" x:Key="proxyMenu" >
            <MenuItem Header="_Connect" Command="{Binding Path=ProxyConnection.Connect}" IsChecked="{Binding Path=ProxyConnection.IsConnected}" />
            <MenuItem Header="_Disconnect" Command="{Binding Path=ProxyConnection.Disconnect}" />
</MenuItem>


<MenuItem Header="_foo" x:Key="fooMenu" >
    <MenuItem Header="_bar" Command="{Binding Path=Foo.Bar}" />
    <MenuItem Header="_vodoo" Command="{Binding Path=Foo.Vodoo}" />
</MenuItem>

The I use resource directories like this, or am I not?

<Window.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="Menus.xaml"></ResourceDictionary>
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</Window.Resources>

And then?

<StackPanel DockPanel.Dock="Top" >
    <Menu>
        <!-- following throws an exception -->
        <MenuItem ItemsSource="{StaticResource proxyMenu}" />

I tried different bindings but nothing worked as I wanted. the menus did not appear.


Thanks for any hints.
Andy

解决方案

Hi,

the ItemsSource property of the Menu or MenuItem expects an collection of other items.
So your binding will not work.

You could define in the Menus.xaml a CompositeCollection of MenuItem''s and bind these to Menu or MenuItem like so:

<CompositeCollection x:key="MenuTest">
    <MenuItem Header="_Proxy">
        <MenuItem Header="_Connect" />
        <MenuItem Header="_Disconnect" />
    </MenuItem>
</CompositeCollection>

And in your Window:

<Menu ItemsSource="{StaticResource MenuTest}" />

or

<Menu>
  <MenuItem Header="TestMenu" ItemsSource="{StaticResource MenuTest}" />
</Menu>

Hope this helps,

Thomas.

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