加入xClassNotDerivedFromElement错误时，code身后资源词典在Silverlight [英] xClassNotDerivedFromElement error when adding Code Behind to Resource Dictionary in silverlight

问题描述

我需要添加code后面类资源词典中<一个描述href="http://stackoverflow.com/questions/92100/is-it-possible-to-set-$c$c-behind-a-resource-dictionary-in-wpf-for-event-handling">this问题。 （我知道这是不是一个好的做法，但它应该工作的基础上进行链接的问题的意见）.I'm引用code与X：类属性：

I need to add code behind class to Resource Dictionary as described in this question. (I know that this is not a good practise but it should work based on the comments for linked question) .I'm referencing the code with x:Class attribute:

XAML（单独的资源词典文件）：

XAML (separate Resource Dictionary file):

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="MyNamespace.MyStandardResources">
    ...
</ResourceDictionary>

code：

CODE:

using System.Windows;

namespace MyNamespace
{
    public partial class MyStandardResources : ResourceDictionary
    {
        public MyStandardResources()
        {
            InitializeComponent();
        }

        //...
    }
}

这会导致运行解析器异常：

This causes the runtime parser exception:

分析器内部错误：对象作家的 xClassNotDerivedFromElement 。 [行：XXX位置：XXX]。在System.Windows.Application.LoadComponent

Parser internal error: Object writer 'xClassNotDerivedFromElement'. [Line: xxx Position: xxx] at System.Windows.Application.LoadComponent.

这些资源包括在App.xaml中与ResourceDictionary.MergedDictionaries标签。

The resources are included in App.xaml with ResourceDictionary.MergedDictionaries tag.

推荐答案

你是不是想用这个作为ResourceDictionary中合并词典的来源值？如果是的话，不支持。你得到的xClassNotDerivedFromElement错误，这是一种不可思议的方式表明它的，但这里的原因：源属性值被转换在引用XAML的XAML，而不是作为一个类的方法。在XAML分析器将打开XAML因为没有任何precompile受益纯荷载作用，并不能调和的X：当时班

Are you trying to use this ResourceDictionary as a Source value of a merged dictionary? If so, that is not supported. You get that xClassNotDerivedFromElement error, which is a weird way of indicating it, but here's why: the Source attribute value gets translated in a way that references the XAML as XAML, not as a class. The XAML parser opens that XAML as a pure load action without benefit of any precompile, and can't reconcile the x:Class at that time.

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