绑定的静态资源

Question

我有下面的代码：

<!-- Automatically apply icons to context menus based on the header value --> 
<Style x:Key="DecoratedMenuItem" TargetType="MenuItem" BasedOn="{StaticResource MenuItem}"> 
    <Style.Resources> 
     <clr:Double x:Key="CanvasSize">16</clr:Double> 
     <converters:IgnoreUnderscoresConverter x:Key="IgnoreUnderscoresConverter" /> 
    </Style.Resources> 
    <Style.Triggers> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Run" Canvas="{StaticResource appbar_control_play}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Edit" Canvas="{StaticResource appbar_edit}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Delete" Canvas="{StaticResource appbar_delete}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Install" Canvas="{StaticResource appbar_social_dropbox_download}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Uninstall" Canvas="{StaticResource appbar_delete}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Advanced" Canvas="{StaticResource appbar_tardis}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Undo" Canvas="{StaticResource appbar_undo}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Redo" Canvas="{StaticResource appbar_redo}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Exit" Canvas="{StaticResource appbar_close}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Close" Canvas="{StaticResource appbar_close}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Copy" Canvas="{StaticResource appbar_page_copy}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Cut" Canvas="{StaticResource appbar_scissor}" /> 
     <local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}" Value="Paste" Canvas="{StaticResource appbar_clipboard_paste}" /> 
    </Style.Triggers> 
</Style> 

而且在努力减少一些副本，并从绑定粘贴，我试图创建一个共同的结合作为资源字典中的静态资源：

<!-- Automatically apply icons to context menus based on the header value --> 
<Style x:Key="DecoratedMenuItem" TargetType="MenuItem" BasedOn="{StaticResource MenuItem}"> 
    <Style.Resources> 
     <clr:Double x:Key="CanvasSize">16</clr:Double> 
     <converters:IgnoreUnderscoresConverter x:Key="IgnoreUnderscoresConverter" /> 
     <Binding x:Key="HeaderBinding" Path="Header" RelativeSource="{RelativeSource Self}" Converter="{StaticResource IgnoreUnderscoresConverter}" /> 
    </Style.Resources> 
    <Style.Triggers> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Run" Canvas="{StaticResource appbar_control_play}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Edit" Canvas="{StaticResource appbar_edit}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Delete" Canvas="{StaticResource appbar_delete}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Install" Canvas="{StaticResource appbar_social_dropbox_download}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Uninstall" Canvas="{StaticResource appbar_delete}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Advanced" Canvas="{StaticResource appbar_tardis}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Undo" Canvas="{StaticResource appbar_undo}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Redo" Canvas="{StaticResource appbar_redo}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Exit" Canvas="{StaticResource appbar_close}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Close" Canvas="{StaticResource appbar_close}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Copy" Canvas="{StaticResource appbar_page_copy}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Cut" Canvas="{StaticResource appbar_scissor}" /> 
     <local:IconTrigger Binding="{StaticResource HeaderBinding}" IconSize="{StaticResource CanvasSize}" Value="Paste" Canvas="{StaticResource appbar_clipboard_paste}" /> 
    </Style.Triggers> 
</Style> 

但我的程序都吐出来了以下异常： A“绑定”不能在“资源字典”集合中使用。 '绑定'只能在DependencyObject的DependencyProperty上设置。

是否有WPF/MVVM接受的方式来减少这种膨胀（以及由于复制/粘贴而产生错误的可能性）？

Answer 1

我认为最好的选择是重写你的IconTrigger类。它应该存储值和画布的集合，所以你可以写这样的东西：

<local:IconTrigger Binding="{Binding Header, RelativeSource={RelativeSource Self}, Converter={StaticResource IgnoreUnderscoresConverter}}" IconSize="{StaticResource CanvasSize}"> 
     <local:IconTriggerValue Value="Run" Canvas="{StaticResource appbar_control_play}" /> 
     <local:IconTriggerValue Value="Edit" Canvas="{StaticResource appbar_edit}" /> 
     <local:IconTriggerValue Value="Delete" Canvas="{StaticResource appbar_delete}" /> 
     <local:IconTriggerValue Value="Install" Canvas="{StaticResource appbar_social_dropbox_download}" /> 
     <local:IconTriggerValue Value="Uninstall" Canvas="{StaticResource appbar_delete}" /> 
     <local:IconTriggerValue Value="Advanced" Canvas="{StaticResource appbar_tardis}" /> 
     <local:IconTriggerValue Value="Undo" Canvas="{StaticResource appbar_undo}" /> 
     <local:IconTriggerValue Value="Redo" Canvas="{StaticResource appbar_redo}" /> 
     <local:IconTriggerValue Value="Exit" Canvas="{StaticResource appbar_close}" /> 
     <local:IconTriggerValue Value="Close" Canvas="{StaticResource appbar_close}" /> 
     <local:IconTriggerValue Value="Copy" Canvas="{StaticResource appbar_page_copy}" /> 
     <local:IconTriggerValue Value="Cut" Canvas="{StaticResource appbar_scissor}" /> 
     <local:IconTriggerValue Value="Paste" Canvas="{StaticResource appbar_clipboard_paste}" /> 
    </local:IconTrigger>