Question

我创建了一个silverlight 5项目，并将一个文本框控件添加到xaml页面，然后向文本框控件添加了一个行动操作行为。还在ServiceOrientedAnalytics页面上添加了main.xaml组件，并将端点配置为我的wcf服务。当我尝试执行该项目时，我收到以下错误消息。这同样适用于SL4。我能够跟踪SL4中的事件及其一切正常。任何人都可以帮我解决这个问题。

我还从codeplex网站下载了Microsoft Analytics的最新源代码并添加到我的项目中，当我尝试调试时，在导入日志时会发生同样的异常。

错误讯息：

   at System.Windows.Navigation.PageResourceContentLoader.EndLoad(IAsyncResult asyncResult)
   at System.Windows.Navigation.NavigationService.ContentLoader_BeginLoad_Callback(IAsyncResult result)
Caused by: Add value to collection of type 'System.Windows.Interactivity.TriggerCollection' threw an exception. [Line: 22 Position: 27]

   at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
   at SL5CompatibilityTest.Home.InitializeComponent()
   at SL5CompatibilityTest.Home..ctor()
Caused by: The composition remains unchanged. The changes were rejected because of the following error(s): The composition produced a single composition error. The root cause is provided below. Review the CompositionException.Errors property for more detailed information.

1) No valid exports were found that match the constraint '((exportDefinition.ContractName == "Log") AndAlso (exportDefinition.Metadata.ContainsKey("ExportTypeIdentity") AndAlso "System.Void(Microsoft.WebAnalytics.AnalyticsEvent)".Equals(exportDefinition.Metadata.get_Item("ExportTypeIdentity"))))', invalid exports may have been rejected.

Resulting in: Cannot set import 'Microsoft.WebAnalytics.Behaviors.TrackAction.Log (ContractName="Log")' on part 'Microsoft.WebAnalytics.Behaviors.TrackAction'.
Element: Microsoft.WebAnalytics.Behaviors.TrackAction.Log (ContractName="Log") -->  Microsoft.WebAnalytics.Behaviors.TrackAction


   at System.ComponentModel.Composition.CompositionResult.ThrowOnErrors(AtomicComposition atomicComposition)
   at System.ComponentModel.Composition.Hosting.ComposablePartExportProvider.Compose(CompositionBatch batch)
   at System.ComponentModel.Composition.Hosting.CompositionContainer.Compose(CompositionBatch batch)
   at System.ComponentModel.Composition.CompositionInitializer.SatisfyImports(ComposablePart part)
   at System.ComponentModel.Composition.CompositionInitializer.SatisfyImports(Object attributedPart)
   at Microsoft.WebAnalytics.Behaviors.TrackAction.OnAttached()
   at System.Windows.Interactivity.TriggerAction.Attach(DependencyObject dependencyObject)
   at System.Windows.Interactivity.TriggerActionCollection.OnAttached()
   at System.Windows.Interactivity.AttachableCollection`1.Attach(DependencyObject dependencyObject)
   at System.Windows.Interactivity.TriggerBase.Attach(DependencyObject dependencyObject)
   at System.Windows.Interactivity.TriggerCollection.ItemAdded(TriggerBase item)
   at System.Windows.Interactivity.AttachableCollection`1.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at System.Windows.DependencyObjectCollection`1.TryCollectionChanged(NotifyCollectionChangedEventArgs e)
   at System.Windows.DependencyObjectCollection`1.System.Collections.IList.Add(Object value)
   at MS.Internal.XamlManagedRuntimeRPInvokes.Add(XamlQualifiedObject& qoCollection, XamlPropertyToken inCollectionProperty, XamlQualifiedObject& inValue)

Answer 1

我已经确定了MEF和Silverlight 5的问题，我正在努力解决它。 MEF找不到DataCollector.Log方法。

Michael S. Scherotter（MSAF的创始人）。

在SL5中使用Silverlight Analytics框架

1 个答案: