Question

我正在研究WPF的问题，偶尔会发生在客户端。不幸的是，客户端不愿意提供他的数据库的备份或连接字符串，我不允许安装任何外部应用程序进行诊断。因此，我手中唯一的事就是尝试重现它。但是，我试图在这个论坛上与专家并行寻求解决方案。

初看起来，似乎问题可能是由于Scroll Viewer控件，因为我可以看到堆栈跟踪：

at System.Windows.Controls.ScrollContentPresenter.ValidateInputOffset    (Double offset, String parameterName) at System.Windows.Controls.ScrollViewer.

然而，在高端，我得到一个未处理的例外：

System.Reflection.TargetInvocationException occurred in WindowsBase.dll

在我的申请表中。

查看错误的更多细节，我发现异常消息为：

Exception has been thrown by the target of an invocation.

内部异常显示消息：

offset parameter value cannot be Nan.Parameter name: offset. Inner Exception Source is Presentation Framework.

以下是来自客户端的详细堆栈跟踪：

    at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[]     arguments, Signature sig, Boolean constructor)  
    at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj,     Object[] parameters, Object[] arguments)  
    at System.Delegate.DynamicInvokeImpl(Object[] args)  
    at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate    callback, Object args, Int32 numArgs)  
    at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source,Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)  
    at System.Windows.Threading.DispatcherOperation.InvokeImpl()  
    at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)  
    at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)  
    at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)  
    at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)  
    at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)  
    at System.Windows.Threading.DispatcherOperation.Invoke()
    at System.Windows.Threading.Dispatcher.ProcessQueue()
    at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
    at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
    at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
    at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
    at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)  
    at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
    at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)  
    at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)  
    at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)  
    at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)  
    at System.Windows.Application.RunDispatcher(Object ignore)  
    at System.Windows.Application.RunInternal(Window window)  
    at System.Windows.Application.Run(Window window)  
    at AvocetVM.App.Main()

有没有人遇到过这类问题或有人知道解决方案吗？

WindowsBase.dll中的WPF目标调用异常

0 个答案: