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我在正在处理的应用程序中遇到了一个罕见的问题。这种情况很少发生，但并非每次我在页面之间导航时都会发生，而且我似乎无法绕开它。一直在阅读，并得出一个半结论性的理论，即这可能与无效的跨线程访问有关。堆栈跟踪如下：

System.Reflection.TargetInvocationException, mscorlib, Version=5.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e  Message: [Arg_TargetInvocationException]
Arguments: 
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.0.10411.00&File=mscorlib.dll&Key=Arg_TargetInvocationException HelpLink: 
StackTrace:    at System.Windows.Navigation.PageResourceContentLoader.EndLoad(IAsyncResult asyncResult)
   at System.Windows.Navigation.NavigationService.ContentLoader_BeginLoad_Callback(IAsyncResult result)
   at System.Windows.Navigation.PageResourceContentLoader.BeginLoad_OnUIThread(AsyncCallback userCallback, PageResourceContentLoaderAsyncResult result)
   at System.Windows.Navigation.PageResourceContentLoader.<>c__DisplayClass4.<BeginLoad>b__0(Object args)
2013-02-01 15:56:43,593 [5640] DEBUG WellguideViewModel.class - RefreshGraphValues method called
MachineName:2013-02-01 15:53:53,548 [5640] DEBUG WellViewModel.class - WellViewModel constructor called
MachineName:2013-02-01 15:56:44,625 [1836] DEBUG WellguideViewModel.class - RefreshGraphValues method called

希望有人能够提供帮助:)

- 另外，我可能应该提到我的组件正在画布上绘制一些线条（具体为 PathFigure），因为我知道这个问题可能与绘制 ui 元素有关。

周末愉快！

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