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System.NullReferenceException from XamOutlookBar
posted

Hi all,

From time to time the System.NullReferenceException throws from XamOutlookBar. It occurs very rarely and I have no idea what is the reason of this problem.

I know that I'm providing extremely little information, because what I do have is just stack trace and no more, but I HOPE someone had already ran into the same problem and coped with the problem.

Here is what I have: it appears on Windows 8.1 with InfragisticsWPF4.OutlookBar.v14.1.dll

System.NullReferenceException: Object reference not set to an instance of an object. at

Infragistics.Windows.OutlookBar.XamOutlookBar.Grid_SizeChanged(Object sender, SizeChangedEventArgs e) at System.Windows.SizeChangedEventArgs.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.RaiseEvent(RoutedEventArgs e) at System.Windows.FrameworkElement.OnRenderSizeChanged(SizeChangedInfo sizeInfo) at System.Windows.ContextLayoutManager.fireSizeChangedEvents() at System.Windows.ContextLayoutManager.UpdateLayout() at System.Windows.UIElement.UpdateLayout() at Infragistics.Windows.OutlookBar.XamOutlookBar.InitializeGroups(Boolean moveToNavigationArea, Boolean fillNavAreaWithDesiredNumberOfGroups) at Infragistics.Windows.OutlookBar.XamOutlookBar.XamOutlookBar_Loaded(Object sender, RoutedEventArgs e) 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.RaiseEvent(RoutedEventArgs e) at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent) at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root) at MS.Internal.LoadedOrUnloadedOperation.DoWork() at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks() at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks() at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget) at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)