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-- if A null-check can give us something to breathe and it could solve the problem! So where the problem of making a Null-Check ?
The problem is not new and it dosen't solve until today and the .Net 5 is not the solution for this problem, because we will be not uptodate! Unfortunately we are thinking now to stop using WPF and stay by Winforms and ASP.
I don't know, how it will be with .Net 7. I hope that, they do not have like this problem.
Anyway here is the result of the exception and we hope to find the solution in .Net 6.0.5!!:
XML:
1026 2 0 0x80000000000000 45525 Application PC1388 Application: Project.exe CoreCLR Version: 6.0.422.16404 .NET Version: 6.0.4 Description: The process was terminated due to an unhandled exception. Exception Info: System.ArgumentNullException: Value cannot be null. [Parameter 'element'] at System.Windows.Controls.ToolTipService.GetBetweenShowDelay[DependencyObject element] at System.Windows.Controls.PopupControlService.CloseToolTip[ToolTip tooltip] at System.Windows.Controls.PopupControlService.OnPostProcessInput[Object sender, ProcessInputEventArgs e] at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers[Tuple`2 postProcessInput, ProcessInputEventArgs processInputEventArgs] at System.Windows.Input.InputManager.ProcessStagingArea[] at System.Windows.Input.MouseDevice.Synchronize[] at System.Windows.Input.MouseDevice.ChangeMouseCapture[IInputElement mouseCapture, IMouseInputProvider providerCapture, CaptureMode captureMode, Int32 timestamp] at System.Windows.Input.MouseDevice.Capture[IInputElement element, CaptureMode captureMode] at CefSharp.Wpf.ChromiumWebBrowser.OnMouseDown[MouseButtonEventArgs e] in C:\projects\cefsharp\CefSharp.Wpf\ChromiumWebBrowser.cs:line 2239 at System.Windows.UIElement.OnMouseDownThunk[Object sender, MouseButtonEventArgs e] at System.Windows.RoutedEventArgs.InvokeHandler[Delegate handler, Object target] at System.Windows.EventRoute.InvokeHandlersImpl[Object source, RoutedEventArgs args, Boolean reRaised] at System.Windows.UIElement.RaiseEventImpl[DependencyObject sender, RoutedEventArgs args] at System.Windows.UIElement.RaiseTrustedEvent[RoutedEventArgs args] at System.Windows.Input.InputManager.ProcessStagingArea[] at System.Windows.Input.InputProviderSite.ReportInput[InputReport inputReport] at System.Windows.Interop.HwndMouseInputProvider.ReportInput[IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel] at System.Windows.Interop.HwndMouseInputProvider.FilterMessage[IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled] at System.Windows.Interop.HwndSource.InputFilterMessage[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.Threading.Dispatcher.Run[] at System.Windows.Application.RunDispatcher[Object ignore] at System.Windows.Application.RunInternal[Window window] at System.Windows.Application.Run[] at Application.Desktop.App.Main[]
Exception:
Application: Project.exe CoreCLR Version: 6.0.422.16404 .NET Version: 6.0.4 Description: The process was terminated due to an unhandled exception. Exception Info: System.ArgumentNullException: Value cannot be null. [Parameter 'element'] at System.Windows.Controls.ToolTipService.GetBetweenShowDelay[DependencyObject element] at System.Windows.Controls.PopupControlService.CloseToolTip[ToolTip tooltip] at System.Windows.Controls.PopupControlService.OnPostProcessInput[Object sender, ProcessInputEventArgs e] at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers[Tuple`2 postProcessInput, ProcessInputEventArgs processInputEventArgs] at System.Windows.Input.InputManager.ProcessStagingArea[] at System.Windows.Input.MouseDevice.Synchronize[] at System.Windows.Input.MouseDevice.ChangeMouseCapture[IInputElement mouseCapture, IMouseInputProvider providerCapture, CaptureMode captureMode, Int32 timestamp] at System.Windows.Input.MouseDevice.Capture[IInputElement element, CaptureMode captureMode] at CefSharp.Wpf.ChromiumWebBrowser.OnMouseDown[MouseButtonEventArgs e] in C:\projects\cefsharp\CefSharp.Wpf\ChromiumWebBrowser.cs:line 2239 at System.Windows.UIElement.OnMouseDownThunk[Object sender, MouseButtonEventArgs e] at System.Windows.RoutedEventArgs.InvokeHandler[Delegate handler, Object target] at System.Windows.EventRoute.InvokeHandlersImpl[Object source, RoutedEventArgs args, Boolean reRaised] at System.Windows.UIElement.RaiseEventImpl[DependencyObject sender, RoutedEventArgs args] at System.Windows.UIElement.RaiseTrustedEvent[RoutedEventArgs args] at System.Windows.Input.InputManager.ProcessStagingArea[] at System.Windows.Input.InputProviderSite.ReportInput[InputReport inputReport] at System.Windows.Interop.HwndMouseInputProvider.ReportInput[IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel] at System.Windows.Interop.HwndMouseInputProvider.FilterMessage[IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled] at System.Windows.Interop.HwndSource.InputFilterMessage[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.Threading.Dispatcher.Run[] at System.Windows.Application.RunDispatcher[Object ignore] at System.Windows.Application.RunInternal[Window window] at System.Windows.Application.Run[] at Application.Desktop.App.Main[]
XML
1000 2 100 0x80000000000000 45526 Application PC1388 BibliothekSystem.exe 1.0.0.0 61e1d8d9 KERNELBASE.dll 10.0.17763.2803 bfcd0c87 e0434352 0000000000039319 2094 01d8589e2484668b C:\Program Files\Project\Project.exe C:\Windows\System32\KERNELBASE.dll 108bbd7d-0ede-41d2-a40f-55b762a52ac3
Exception
Name der fehlerhaften Anwendung: Project.exe, Version: 1.0.0.0, Zeitstempel: 0x61e1d8d9 Name des fehlerhaften Moduls: KERNELBASE.dll, Version: 10.0.17763.2803, Zeitstempel: 0xbfcd0c87 Ausnahmecode: 0xe0434352 Fehleroffset: 0x0000000000039319 ID des fehlerhaften Prozesses: 0x2094 Startzeit der fehlerhaften Anwendung: 0x01d8589e2484668b Pfad der fehlerhaften Anwendung: C:\Program Files\Project\Project.exe Pfad des fehlerhaften Moduls: C:\Windows\System32\KERNELBASE.dll Berichtskennung: 108bbd7d-0ede-41d2-a40f-55b762a52ac3 Vollständiger Name des fehlerhaften Pakets: Anwendungs-ID, die relativ zum fehlerhaften Paket ist: