.net 自动（无键）样式在另一程序集中的合并词典中不应用

我将样式和模板xaml文件从应用程序（.exe）项目移动到库项目（.dll），因为我想在多个应用程序中使用它们

在App.xaml中，我有：

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/All.xaml" />
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</Application.Resources>

在All.xaml中（在公共程序集中）：

使用此代码，不会应用styles.xaml中的无键样式

相反，如果我在App.xaml中直接引用它们，它会起作用：

<Application.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Styles.xaml" />
            <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Templates.xaml" />
            <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Converters.xaml" />
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</Application.Resources>

---

有人能解释为什么会这样吗？

这是资源字典实现的产物。在EXE中，将All.xaml合并到App.xaml后，找不到对其他词典的相对引用。如果您为它们指定完全限定（绝对）包URI，那么您的应用程序将能够找到它们

因此，在All.xaml中替换以下内容：

<ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="Styles.xaml" />
    <ResourceDictionary Source="Templates.xaml" />
    <ResourceDictionary Source="Converters.xaml" />
</ResourceDictionary.MergedDictionaries>

为此：

<ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Styles.xaml" />
    <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Templates.xaml" />
    <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Converters.xaml" />
</ResourceDictionary.MergedDictionaries>

<ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Styles.xaml" />
    <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Templates.xaml" />
    <ResourceDictionary Source="pack://application:,,,/MyApplication.Common;component/Resources/Converters.xaml" />
</ResourceDictionary.MergedDictionaries>