as I mentioned, we are not doing the same action as test project. we are getting the same exception , in 2 different scenario. But, both are giving the same Stack trace. we randomly tried some scenario to reproduce the same. then only we got the same stack trace in the test project.
Please note test project and main project stack trace both are almost same.
Main project stack trace are below. ========================== UniqueId - ae29d52b-5f0a-4a6b-8f1e-0a67eb01b481 ErrorMessage - Object reference not set to an instance of an object. CustomInfo - System.NullReferenceException: Object reference not set to an instance of an object. at MindFusion.Diagramming.DiagramItem.UpdateHandleColors() at MindFusion.Diagramming.DiagramNode.UpdateHandleColors() at MindFusion.Diagramming.DiagramNode.AddHandlesToCanvas(IList`1 positions) at MindFusion.Diagramming.DiagramNode.AddHandlesToCanvas() at MindFusion.Diagramming.DiagramItem.ce6241e517c3ba2caf4d95c5b333db22c() at MindFusion.Diagramming.DiagramItem.ca108fd0cedf2cfffa1a55c4efffde83c(Boolean cb0c3b0edfc2b9959793e7817a37f4c3b) at MindFusion.Diagramming.Selection.cba7e5b942846636a9ac87936c5f74c3e(DiagramItem c44ca0f284b2cdfc7b30e75df070b69d8) at MindFusion.Diagramming.Selection.Change(DiagramItem item) at MindFusion.Diagramming.BehaviorBase.c5c3bb8a03b003578d6aea7a76278d42e(Point cd972e0554ef635660dd456973984382a) at MindFusion.Diagramming.BehaviorBase.OnMouseUp(MouseButtonEventArgs e) at MindFusion.Diagramming.Diagram.OnMouseLeftButtonUp(Object sender, MouseButtonEventArgs e) at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent) at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e) at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) 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.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted) at System.Windows.Input.InputManager.ProcessStagingArea() at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) 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) StackTrace - at MindFusion.Diagramming.DiagramItem.UpdateHandleColors() at MindFusion.Diagramming.DiagramNode.UpdateHandleColors() at MindFusion.Diagramming.DiagramNode.AddHandlesToCanvas(IList`1 positions) at MindFusion.Diagramming.DiagramNode.AddHandlesToCanvas() at MindFusion.Diagramming.DiagramItem.ce6241e517c3ba2caf4d95c5b333db22c() at MindFusion.Diagramming.DiagramItem.ca108fd0cedf2cfffa1a55c4efffde83c(Boolean cb0c3b0edfc2b9959793e7817a37f4c3b) at MindFusion.Diagramming.Selection.cba7e5b942846636a9ac87936c5f74c3e(DiagramItem c44ca0f284b2cdfc7b30e75df070b69d8) at MindFusion.Diagramming.Selection.Change(DiagramItem item) at MindFusion.Diagramming.BehaviorBase.c5c3bb8a03b003578d6aea7a76278d42e(Point cd972e0554ef635660dd456973984382a) at MindFusion.Diagramming.BehaviorBase.OnMouseUp(MouseButtonEventArgs e) at MindFusion.Diagramming.Diagram.OnMouseLeftButtonUp(Object sender, MouseButtonEventArgs e) at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent) at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e) at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget) at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target) at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs) 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.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted) at System.Windows.Input.InputManager.ProcessStagingArea() at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) 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)
================== we are doing selection that time only the exception is raised. please provide me your mail ID. we will give you more info.
I believe this can be easily solvable, Kindly arrange meeting with your development team. my mail ID : sundar.muthu@lightpharma.com
Thanks, Sundar M.
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