Ich versuche, WpfToolkit zu verwendenDataGrid in Windows Phone 7-Projekt (Silverligt 4) und es funktioniert nicht. Hier ist die XAML:

<UserControl x:Class="SilverlightControls.Grid"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    xmlns:wtk="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit"
    d:DesignHeight="480" d:DesignWidth="480">

    <Grid x:Name="LayoutRoot" Background="#FF1F1F1F" Width="960">
        <Grid x:Name="TitleGrid">
            <TextBlock Text="{Binding Title}" Style="{StaticResource PhoneTextPageTitle2Style}"/>
        </Grid>
        <wtk:DataGrid>
        </wtk:DataGrid>
    </Grid>
</UserControl>

Das Projekt wird ordnungsgemäß kompiliert, stürzt jedoch zur Laufzeit beim Laden dieses Steuerelements ab. Der beste Hinweis, den ich bisher bekommen habe, ist von Visual Studio Designer. Einmal füge ich hinzuwtk:DataGrid Für das Steuerelement wird der visuelle Designer nicht geladen und unten wird die Ausnahme angezeigt.

Könnte es sein, dass WpfToolkit auf PresentationFramework.dll basiert und in SL4 nicht verfügbar ist?

System.Reflection.Adds.UnresolvedAssemblyException
Type universe cannot resolve assembly: PresentationFramework, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35.
   at System.Reflection.Adds.AssemblyProxy.GetResolvedAssembly()
   at System.Reflection.Adds.AssemblyProxy.get_FullName()
   at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext.PrepareAttributes(Reflectable`1 reflectableAssembly)
   at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext.PrepareAttributes(Reflectable`1 reflectableType)
   at MS.Internal.Metadata.ClrType.GetAttributes[T](ReflectionMetadataContext context, IReflectable`1 member, ITypeMetadata attributeType, Boolean merge, AttributeMergeCache& cache)
   at MS.Internal.Metadata.ClrMember`1.GetLocalAttributes(ITypeMetadata attributeType)
   at MS.Internal.Design.Metadata.Xaml.XamlType.GetSpecialProperty(Int32 idx, PropertyIdentifier pid)
   at MS.Internal.Design.Metadata.Xaml.XamlType.get_ContentProperty()
   at Microsoft.Windows.Design.Metadata.Xaml.XamlExtensionImplementations.GetContentProperty(ITypeMetadata sourceType)
   at Microsoft.Windows.Design.Metadata.Xaml.XamlExtensions.GetContentProperty(ITypeMetadata source)
   at MS.Internal.Design.Metadata.ReflectionTypeNode.get_ContentProperty()
   at MS.Internal.Design.Markup.XmlElement.CalcChildWhitespaceImportant(XamlElement element)
   at MS.Internal.Design.Markup.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Design.Markup.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Design.Markup.XmlElement.ConvertChildrenToXaml(XamlElement result, PrefixScope scope, IParseContext context, IMarkupSourceProvider provider, Boolean childrenAsString)
   at MS.Internal.Design.Markup.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider)
   at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.ParseElementFromSkeleton(XamlParseContext context, SkeletonNode node, XamlElement parent, Boolean fullElement)
   at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.UpdateSkeleton(IDamageListener listener)
   at Microsoft.Windows.Design.DocumentModel.Trees.MarkupDocumentTreeManager.Update()
   at Microsoft.Windows.Design.DocumentModel.MarkupProducer.Update()
   at Microsoft.Windows.Design.DocumentModel.MarkupProducer.HandleMessage(DocumentTreeCoordinator sender, MessageKey key, MessageArguments args)
   at Microsoft.Windows.Design.DocumentModel.MarkupProducer.Microsoft.Windows.Design.DocumentModel.IDocumentTreeConsumer.HandleMessage(DocumentTreeCoordinator sender, MessageKey key, MessageArguments args)
   at Microsoft.Windows.Design.DocumentModel.DocumentTreeCoordinator.SendMessage[T](MessageKey`1 key, T args, Boolean isPrivateMessage)
   at Microsoft.Windows.Design.DocumentModel.DocumentTreeCoordinator.QueuedMessage`1.Microsoft.Windows.Design.DocumentModel.IQueuedMessage.Invoke()
   at Microsoft.Windows.Design.DocumentModel.DocumentTreeCoordinator.ProcessQueuedMessages(Object state)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)