Question

我有一个ResourceDictionary文件，我也有两个类可供使用。
其中一个是IValueConverter，另一个是与EventHandlers相关的控制。
班级名称EventHandlers设置为x:Class属性值。
我还需要将Converters设置为第二个x:Class。x:Class is set more than one time。
如何解决这个问题呢？

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）。

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

然后，您可以使用x：Key定义转换器作为静态资源。

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>

是否可以将“x：Class”多个设置为ResourceDictionary文件？

1 个答案: