wpf 如何在WPF用户控件中合并导入和本地资源
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How to combine imported and local resources in WPF user control
提问by Tor Haugen
I'm writing several WPF user controls that need both shared and individual resources.
我正在编写几个需要共享资源和个人资源的 WPF 用户控件。
I have figured out the syntax for loading resources from a separate resource file:
我已经找到了从单独的资源文件加载资源的语法：
<UserControl.Resources>
<ResourceDictionary Source="ViewResources.xaml" />
</UserControl.Resources>
However, when I do this, I cannot also add resources locally, like:
但是，当我这样做时，我也不能在本地添加资源，例如：
<UserControl.Resources>
<ResourceDictionary Source="ViewResources.xaml" />
<!-- Doesn't work: -->
<ControlTemplate x:Key="validationTemplate">
...
</ControlTemplate>
<style x:key="textBoxWithError" TargetType="{x:Type TextBox}">
...
</style>
...
</UserControl.Resources>
I've had a look at ResourceDictionary.MergedDictionaries, but that only lets me merge more than one external dictionary, not define further resources locally.
我看过ResourceDictionary.MergedDictionaries，但这只能让我合并多个外部字典，而不是在本地定义更多资源。
I must be missing something trivial?
我一定错过了一些微不足道的东西吗？
It should be mentioned: I'm hosting my user controls in a WinForms project, so putting shared resources in App.xaml is not really an option.
应该提到的是：我在 WinForms 项目中托管我的用户控件，因此将共享资源放在 App.xaml 中并不是一个真正的选择。
回答by Tor Haugen
I figured it out. The solution involves MergedDictionaries, but the specifics must be just right, like this:
我想到了。解决方法涉及到MergedDictionaries，但是具体的一定要恰到好处，像这样：
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="ViewResources.xaml" />
</ResourceDictionary.MergedDictionaries>
<!-- This works: -->
<ControlTemplate x:Key="validationTemplate">
...
</ControlTemplate>
<style x:key="textBoxWithError" TargetType="{x:Type TextBox}">
...
</style>
...
</ResourceDictionary>
</UserControl.Resources>
That is, the local resources must be nested withinthe ResourceDictionary tag. So the example hereis incorrect.
也就是说，本地资源必须嵌套在ResourceDictionary 标签中。所以这里的例子是不正确的。
回答by Preet Sangha
Use MergedDictionaries.
I got the following example from here.
File1
文件 1
<ResourceDictionary
xmlns=" http://schemas.microsoft.com/winfx/2006/xaml/presentation "
xmlns:x=" http://schemas.microsoft.com/winfx/2006/xaml " >
<Style TargetType="{x:Type TextBlock}" x:Key="TextStyle">
<Setter Property="FontFamily" Value="Lucida Sans" />
<Setter Property="FontSize" Value="22" />
<Setter Property="Foreground" Value="#58290A" />
</Style>
</ResourceDictionary>
File 2
档案 2
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="TextStyle.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
回答by Lu55
You can define local resources inside MergedDictionaries section:
您可以在 MergedDictionaries 部分中定义本地资源：
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<!-- import resources from external files -->
<ResourceDictionary Source="ViewResources.xaml" />
<ResourceDictionary>
<!-- put local resources here -->
<Style x:key="textBoxWithError" TargetType="{x:Type TextBox}">
...
</Style>
...
</ResourceDictionary>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
