在WPF用户控件库中的UserControl之间共享资源的最简单方法是什么？

There are a WPF User Control library and two (or more) User Controls in it. I need to use the same style in both user controls. How can I share this style? For example:

有一个WPF用户控件库和两个（或更多）用户控件。我需要在两个用户控件中使用相同的样式。我该如何分享这种风格？例如：

This is the style:

这是风格：

<Style x:Key="customLabelStyle" TargetType="Label">
    ...
</Style>

User control A:

用户控制A：

<UserControl x:Class="Edu.Wpf.Example.UserControlA"
   ...xmlns stuff... >
   <Grid>
      ... some xaml markup...
      <Label Style="{StaticResource customLabelStyle}"/>
   </Grid>
</UserControl>

UserControl B:

UserControl B：

 <UserControl x:Class="Edu.Wpf.Example.UserControlB"
   ...xmlns stuff... >
   <Grid>
      ... some another xaml markup...
      <Label Style="{StaticResource customLabelStyle}"/>
   </Grid>
</UserControl>

So how can I share this style between user controls in the library without involving of the application app.xaml resource dictionary?

那么如何在不涉及应用程序app.xaml资源字典的情况下在库中的用户控件之间共享此样式？

UPDATE

UPDATE

I can add Themes\Generic.xaml into my library and define the style there. But in this case I have to use ComponentResourceKey as the key of the style. Right? It's long and not very handy expression...

我可以将Themes \ Generic.xaml添加到我的库中并在那里定义样式。但在这种情况下，我必须使用ComponentResourceKey作为样式的关键。对？这很长，而且不是很方便的表达......

3 个解决方案

#1

You can define the shared resources in a separate ResourceDictionary, then merge them into your UserControl's Resources using MergedDictionaries.

您可以在单独的ResourceDictionary中定义共享资源，然后使用MergedDictionaries将它们合并到UserControl的Resources中。

#2

Say that you have one resource defining colors, like this:

假设您有一个定义颜色的资源，如下所示：

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Color A="#FF" R="#FF" G="#22" B="#11" x:Key="MyRed"/>
    <Color A="#FF" R="#00" G="#FF" B="#21" x:Key="MyGreen"/>
    <Color A="#FF" R="#00" G="#22" B="#FF" x:Key="MyBlue" />


    <SolidColorBrush x:Key="MyGreenBrush" Color="{StaticResource MyGreen}"/>
    <SolidColorBrush x:Key="MyRedBrush" Color="{StaticResource MyRed}"/>
    <SolidColorBrush x:Key="MyBlueBrush" Color="{StaticResource MyBlue}"/>
</ResourceDictionary>

And another one defining some basic styles like this:

另一个定义了一些基本样式：

<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="PocTextBlock">
        <Setter Property="FontSize" Value="16"/>
    </Style>

    <Style TargetType="{x:Type TextBox}" x:Key="MyTextBox">
        <Setter Property="FontSize" Value="20"/>
        <Setter Property="Foreground" Value="{DynamicResource MyGreenBrush}"/>
    </Style>

    <Style TargetType="{x:Type TextBlock}" x:Key="MyResultTextBlock">
        <Setter Property="FontSize" Value="16"/>
        <Setter Property="FontWeight" Value="Bold"/>
        <Setter Property="Foreground" Value="{DynamicResource MyGreenBrush}"/>
    </Style>

    <Style TargetType="{x:Type Border}" x:Key="MyBorder">
        <Setter Property="BorderBrush" Value="{DynamicResource MyGreenBrush}"/>
        <Setter Property="BorderThickness" Value="4"/>
        <Setter Property="CornerRadius" Value="5"/>
    </Style>
</ResourceDictionary>

You can then add your resources to the App.xaml's Application.Resources tag as shown here:

然后，您可以将资源添加到App.xaml的Application.Resources标记中，如下所示：

<Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="OtherStyles.xaml"/>
                <ResourceDictionary Source="Colors.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

Then, in all your UserControls, you can use the styles or brushes as StaticResources as your example code shows.

然后，在所有UserControl中，您可以将样式或画笔用作StaticResources，如示例代码所示。

#3

I found the solution that works in design time too (at least in VS2010) :

我发现解决方案也适用于设计时间（至少在VS2010中）：

public static class Resource
{
    private static readonly Dictionary<Uri, ResourceDictionary> SharedDictinaries = new Dictionary<Uri, ResourceDictionary>();

    private static void onMergedDictionaryChanged(DependencyObject source, DependencyPropertyChangedEventArgs args)
    {
        FrameworkElement el = source as FrameworkElement;
        if (el == null)
            return;

        Uri resourceLocator = new Uri(GetMergedDictionary(source), UriKind.Relative);
        ResourceDictionary dictionary;
        if (SharedDictinaries.ContainsKey(resourceLocator))
            dictionary = SharedDictinaries[resourceLocator];
        else
        {
            dictionary = (ResourceDictionary)Application.LoadComponent(resourceLocator);
            SharedDictinaries.Add(resourceLocator, dictionary);
        }

        el.Resources.MergedDictionaries.Add(dictionary);
    }

    public static readonly DependencyProperty MergedDictionaryProperty =
        DependencyProperty.RegisterAttached("MergedDictionary", typeof (String), typeof (Resource), new FrameworkPropertyMetadata(null, onMergedDictionaryChanged));

    [AttachedPropertyBrowsableForType(typeof(FrameworkElement))]
    public static String GetMergedDictionary(DependencyObject source)
    {
        return (String) source.GetValue(MergedDictionaryProperty);
    }

    public static void SetMergedDictionary(DependencyObject source, String value)
    {
        source.SetValue(MergedDictionaryProperty, value);
    }
}

This attached property can be applied to a FrameworkElement. Imagine the customLabelStyle is defined in the Styles.xaml dictionary in the Edu.Wpf.Example project. So this style can be applied in the next way:

此附加属性可以应用于FrameworkElement。想象一下，customLabelStyle是在Edu.Wpf.Example项目的Styles.xaml字典中定义的。所以这种风格可以用于下一个方式：

<UserControl x:Class="Edu.Wpf.Example.UserControlA"
     ...
     xmlns:res="clr-namespace:Edu.Wpf.Example.Resources"
     res:Resource.MergedDictionary="/Edu.Wpf.Example;component/Resources/Styles.xaml">
     ...
     <Label Style="{StaticResource customLabelStyle}"/>
</UserControl>

#1