WARNING! Обнаружена неизвестная ошибка: System.Exception: System.NullReferenceException: Ссылка на объект не указывает на экземпляр объекта.
    в krutubel.core.CommentsList.a()
    в krutubel.core.CommentsList.a(Object A_0, SelectionChangedEventArgs A_1)
    в System.Windows.Controls.SelectionChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
    в System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
    в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
    в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
    в System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
    в System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
    в System.Windows.Controls.ListBox.OnSelectionChanged(SelectionChangedEventArgs e)
    в System.Windows.Controls.Primitives.Selector.InvokeSelectionChanged(List`1 unselectedInfos, List`1 selectedInfos)
    в System.Windows.Controls.Primitives.Selector.SelectionChanger.End()
    в System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection)
    в System.Windows.Controls.Primitives.Selector.OnSelectedIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    в System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
    в System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
    в System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
    в System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
    в System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
    в System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
    в krutubel.core.CommentsList.f()
    в krutubel.core.CommentsList.e()
    в krutubel.core.CommentsList.c(Object A_0, RoutedEventArgs A_1)
    в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
    в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
    в System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
    в System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
    в System.Windows.Controls.Primitives.ButtonBase.OnClick()
    в System.Windows.Controls.Button.OnClick()
    в System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
    в System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)
    в System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
    в System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
    в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
    в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
    в System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
    в System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
    в System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
    в System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
    в System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
    в System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
    в System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
    в System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
    в System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
    в System.Windows.Input.InputManager.ProcessStagingArea()
    в System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
    в System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
    в System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
    в System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
    в System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
    в MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
    в MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
    в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
    в System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)