是否可以在 ResourceDictionary 文件中设置 "x:Class" 个以上？

Question

我有一个 ResourceDictionary 文件，我还有两个 class 用于它。
其中一个是 IValueConverter，另一个是用于EventHandlers 与控件有关。
class 名称是 EventHandlers 设置为 x:Class 属性值。
我还需要设置 Converters 作为第二个 x:Class.
但是我做不到，因为设计者抛出了一个错误 x:Class is set more than one time.
我该如何解决这个问题？

Converters.cs

 class Converters : IValueConverter
{

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        double pr = (double)value;
        AltoProgressBar bar = parameter as AltoProgressBar;
        return pr * bar.Width / bar.Maximum;

    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

EventHandlers.cs

public partial class EventHandlers 
{
    private void progressBar_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
    {
        ProgressBar progressBar = sender as ProgressBar;
        var template = progressBar.Template;

        //Find the Rectangle in the ControlTemplate
        var layer = (Rectangle)(template.FindName("rect", progressBar));

        //Calculate the increment amount depending maxValue and Width
        double artis = progressBar.Value * progressBar.Width / progressBar.Maximum;

        DoubleAnimation anim = new DoubleAnimation(toValue: artis, duration: TimeSpan.FromMilliseconds(100));

        layer.BeginAnimation(Rectangle.WidthProperty, anim);
    }
}

styles.xaml

<ResourceDictionary xmlns:my="clr-namespace:AltoSS"
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                x:Class="AltoSS.Converters" 
                <!--this doesn't make any sense-->
                x:Class="AltoSS.EventHandlers">
<!--All styles in here-->
</ResourceDictionary>

Answer 1

我认为不可能多次设置 x:Class-Attribute（多态性目标）。

如果你只想使用你的 class 转换器（更具体的名称会更好）和你的 EventHandeler 你需要在 RD-Tag 中定义两个 classes 的命名空间（类似于xmlns:YourNamespace=clr-命名空间:YourProject.NamespaceName).

然后你可以定义你的转换器x:Key作为静态资源。

像这样

<ResourceDictionary xmlns:my="clr-namespace:AltoSS"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            xmlns:AltoConverters="AltoSS.NamespaceConverters" 
            xmlns:AltoEventHandlers="AltoSS.NamespaceEventHandlers">
            <!--NamespaceConverters and NamespaceEventHandlers from your cs files -->

 <!-- for use as static Resource -->    
 <AltoConverters:Converters x:Key="YourConverters" />

     <!-- example -->
     <Style TargetType="TextBlock">
         <Setter Property="Text" Value="{Binding ...Path..., Converter={StaticResource YourConverters}" />
     </Style>
 </ResourceDictionary>

是否可以在 ResourceDictionary 文件中设置 "x:Class" 个以上？

Is it possible to set "x:Class" more than one into a ResourceDictionary file?

wpf

resourcedictionary

ivalueconverter