從關鍵字ResourceDictionary獲取資源

我有一個WPF窗口應該從XAML文件加載兩個矢量圖像。（每個文件都在一個單獨的文件中，以便在Expression Design中進行更容易的修改。）從關鍵字ResourceDictionary獲取資源

當我將XAML文件包含在MergedDictionary中時，它工作正常。這裏是我使用的代碼：

<Window.Resources> 
    <ResourceDictionary> 
     <ResourceDictionary.MergedDictionaries> 
      <ResourceDictionary Source="Images/LCCD logo.xaml" /> 
      <ResourceDictionary Source="Images/LCCD bottom image.xaml" /> 
     </ResourceDictionary.MergedDictionaries> 
    </ResourceDictionary> 
</Window.Resources>

和

<Image Source="{Binding Source={StaticResource LCCDlogo}}" /> <!-- Simplified --> 
<Image Source="{Binding Source={StaticResource LCCDbar}}" /> <!-- Simplified -->

不過，我現在需要添加更多的窗口資源。新資源屬於此窗口，因此我們希望它位於同一個文件中，而不是包含的文件。

當我添加<Window.Resources>和<ResourceDictionary>之間下面的代碼，我得到以下錯誤：

代碼

<Style TargetType="{x:Type tab:FabTabItem}"> 
     <Setter Property="Header" Value="{Binding Path=LabelText}"/> 
     <Setter Property="HeaderTemplate"> 
      <Setter.Value> 
       <DataTemplate> 
        <StackPanel Orientation="Horizontal" Margin="0,0,4,0"> 
         <TextBlock Text="{Binding}" TextTrimming="CharacterEllipsis"/> 
        </StackPanel> 
       </DataTemplate> 
      </Setter.Value> 
     </Setter> 
    </Style>

警告

The designer does not support loading dictionaries that mix 'ResourceDictionary' items without a key and other items in the same collection. Please ensure that the 'Resources' property does not contain 'ResourceDictionary' items without a key, or that the 'ResourceDictionary' item is the only element in the collection.

所以我改變<ResourceDictionary>標記爲：

<ResourceDictionary x:Key="Images">

但是，我不知道如何訪問此字典中的資源。如何從名爲ResourceDictionary的內部獲取資源？

編輯

沒關係。這編譯但不運行。

的錯誤是：

''Resources' property has already been set on 'MainWindow'.

我想我得做一些其他的方式。

來源

2012-06-07 Moshe Katz

根據關於MergedResourceDictionary's的MSDN頁面，在MergedDictionary中指定的資源字典中定義資源是合法但不常見的。從上面的頁面。

It is legal to define resources within a ResourceDictionary that is specified as a merged dictionary, either as an alternative to specifying Source, or in addition to whatever resources are included from the specified source. However, this is not a common scenario; the main scenario for merged dictionaries is to merge resources from external file locations. If you want to specify resources within the markup for a page, you should typically define these in the main ResourceDictionary and not in the merged dictionaries.

所以試試看看它是否有效。

<Window.Resources> 
    <ResourceDictionary> 
     <ResourceDictionary.MergedDictionaries> 
      <ResourceDictionary Source="Images/LCCD logo.xaml" /> 
      <ResourceDictionary Source="Images/LCCD bottom image.xaml" /> 
      <ResourceDictionary> 
       <Style TargetType="{x:Type tab:FabTabItem}"> 
        <Setter Property="Header" Value="{Binding Path=LabelText}"/> 
        <Setter Property="HeaderTemplate"> 
         <Setter.Value> 
          <DataTemplate> 
           <StackPanel Orientation="Horizontal" Margin="0,0,4,0"> 
            <TextBlock Text="{Binding}" TextTrimming="CharacterEllipsis"/> 
           </StackPanel> 
          </DataTemplate> 
         </Setter.Value> 
        </Setter> 
       </Style> 
      </ResourceDictionary> 
     </ResourceDictionary.MergedDictionaries> 
    </ResourceDictionary> 
</Window.Resources>

來源

2012-06-07 02:10:55

這看起來很有效，它是我的一個更好的答案。 –

@MosheKatz很高興幫助 –

我最終將<Style>向下移動到文件中，放到使用該樣式的元素的父元素上。

這不是最好的解決方案，但它的工作原理。

來源

2012-06-07 01:54:51

從關鍵字ResourceDictionary獲取資源

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