无法解析具有Unity的自定义WPF控件

public class RichTextBoxExtended : RichTextBox
{
    static RichTextBoxExtended()
    {
        //DefaultStyleKeyProperty.OverrideMetadata(typeof(RichTextBoxExtended), new FrameworkPropertyMetadata(typeof(RichTextBoxExtended)));
    }

    public byte[] Text
    {
        get { return (byte[])GetValue(TextProperty); }
        set { SetValue(TextProperty, value); }
    }

    // Using a DependencyProperty as the backing store for Text.  This enables animation, styling, binding, etc...
    public static readonly DependencyProperty TextProperty =
        DependencyProperty.Register("Text", typeof(byte[]), typeof(RichTextBoxExtended), new UIPropertyMetadata(null, new PropertyChangedCallback(TextChangedCallback)));

    private static void TextChangedCallback(DependencyObject obj, DependencyPropertyChangedEventArgs e)
    {
        RichTextBoxExtended richTextBoxExtended = obj as RichTextBoxExtended;
        richTextBoxExtended.ChangeText(e);
    }

    private void ChangeText(DependencyPropertyChangedEventArgs e)
    {
        //clear out any formatting properties
        TextRange range = new TextRange(base.Document.ContentStart, base.Document.ContentEnd);
        range.ClearAllProperties();

        //load bytes into stream, load stream into range
        MemoryStream stream = new MemoryStream(e.NewValue as byte[]);
        range.Load(stream, DataFormats.Rtf);
    }
}

上面是自定义控件…

XAML正在实现自定义控件…

<Grid>
    <controls:RichTextBoxExtended x:Name="Document" Text="{Binding Path=File}">
    </controls:RichTextBoxExtended>
</Grid>

关联的虚拟机…

public class FileViewerViewModel : AViewModel
{
    private byte[] _file = null;

    public FileViewerViewModel(ILoggerFacade logger)
    {

    }

    /// <summary>
    /// Gets or sets the <seealso cref="DataFormats.Rtf"/> file representation as a <seealso cref="byte[]"/>
    /// </summary>
    public byte[] File
    {
        get 
        {
            return _file;
        }
        set 
        {
            _file = value;
            RaiseChanged(() => this.File);
        }
    }
}

最后…如果我打电话…

FileViewerView view = _container.Resolve<FileViewerView>();

它失败了。

Resolution of the dependency failed, type = "cyos.infrastructure.Views.FileViewerView", name = "". Exception message is: The current build operation (build key Build Key[cyos.infrastructure.Views.FileViewerView, null]) failed: Object reference not set to an instance of an object. (Strategy type BuildPlanStrategy, index 3)

如果我从XAML中移除绑定…

<Grid> 
    <controls:RichTextBoxExtended x:Name="Document">
    </controls:RichTextBoxExtended>
</Grid>

一切顺利……没有问题……想法?

编辑:

切换到创建新实例,绕过Unity。问题仍然在同一位置,在初始化组件()处构建fileviewerview时出现异常,其中“对象引用未设置为对象的实例”。

在System.Windows.Markup.BamlRecordReader.ProvideValueFromMarkupExtension(MarkupExtension MarkupExtension,对象对象对象,对象成员) 在system.windows.markup.bamlrecordreader.readpropertyarrayendrecord()上 在system.windows.markup.bamlrecordreader.readrecord(bamlrecord bamlrecord)上 在system.windows.markup.bamlrecordreader.read(布尔单记录) 在system.windows.markup.treebuilderbalmtranslator.parseFragment()上 在System.Windows.Markup.Treebuilder.Parse()上 在System.Windows.Markup.XamlReader.LoadBaml(流、ParserContext ParserContext、对象父级、布尔关闭流) 在system.windows.application.loadcomponent(对象组件、uri资源定位器) 位于c:\documents and settings\amciver\my documents\dev\cyos\cyos\cyos.infrastructure\views.fileviewerview.initializecomponent()中的cyos.infrastructure.views.fileviewerview.xaml:line 1 在cyos.infrastructure.views.fileviewerview..ctor(fileviewerview模型viewmodel)中…