NullReferenceException: 未将对象引用设置到对象的实例。 StackTrace: 在 System.Windows.Controls.Primitives.Popup.OnWindowResize(Object sender, AutoResizedEventArgs e) 在 System.Windows.Interop.HwndSource.Resize(Size newSize) 在 System.Windows.Interop.HwndSource.OnLayoutUpdated(Object obj, EventArgs args) 在 System.Windows.ContextLayoutManager.fireLayoutUpdateEvent() 在 System.Windows.ContextLayoutManager.UpdateLayout() 在 System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg) 在 System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks() 在 System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget) 在 System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget) 在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) 在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) XamlParseException: 设置属性“System.Windows.Controls.Decorator.Child”时引发了异常。 --LineNumber: 0 --LinePosition: 0 StackTrace: 在 System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri) 在 System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter) 在 System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter) 在 System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField) 在 System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren) 在 System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate) 在 System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container) 在 System.Windows.FrameworkElement.ApplyTemplate() 在 System.Windows.FrameworkElement.MeasureCore(Size availableSize) 在 System.Windows.UIElement.Measure(Size availableSize) 在 System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint) 在 System.Windows.FrameworkElement.MeasureCore(Size availableSize) 在 System.Windows.UIElement.Measure(Size availableSize) 在 System.Windows.Controls.Decorator.MeasureOverride(Size constraint) 在 System.Windows.FrameworkElement.MeasureCore(Size availableSize) 在 System.Windows.UIElement.Measure(Size availableSize) 在 System.Windows.Controls.Primitives.PopupRoot.MeasureOverride(Size constraint) 在 System.Windows.FrameworkElement.MeasureCore(Size availableSize) 在 System.Windows.UIElement.Measure(Size availableSize) 在 System.Windows.Interop.HwndSource.SetLayoutSize() 在 System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value) 在 System.Windows.Controls.Primitives.Popup.SetRootVisualToPopupRoot() 在 System.Windows.Controls.Primitives.Popup.CreateWindow(Boolean asyncCall) 在 System.Windows.Controls.Primitives.Popup.OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) 在 System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) 在 System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal) 在 System.Windows.Data.BindingOperations.SetBinding(DependencyObject target, DependencyProperty dp, BindingBase binding) 在 System.Windows.Controls.Primitives.Popup.CreateRootPopupInternal(Popup popup, UIElement child, Boolean bindTreatMousePlacementAsBottomProperty) 在 System.Windows.Controls.ContextMenu.HookupParentPopup() 在 System.Windows.Controls.ContextMenu.OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) 在 System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) 在 System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal) 在 System.Windows.DependencyObject.SetCurrentValueInternal(DependencyProperty dp, Object value) 在 System.Windows.Controls.PopupControlService.RaiseContextMenuOpeningEvent(IInputElement source, Double x, Double y, Boolean userInitiated) 在 System.Windows.Controls.PopupControlService.ProcessMouseUp(Object sender, MouseButtonEventArgs e) 在 System.Windows.Controls.PopupControlService.OnPostProcessInput(Object sender, ProcessInputEventArgs e) 在 System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs) 在 System.Windows.Input.InputManager.ProcessStagingArea() 在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input) 在 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport) 在 System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel) 在 System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) 在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) 在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) 在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) AccessViolationException: 尝试读取或写入受保护的内存。这通常指示其他内存已损坏。 StackTrace: 在 System.Collections.Generic.GenericEqualityComparer`1.GetHashCode(T obj) 在 System.Collections.Generic.Dictionary`2.FindEntry(TKey key) 在 System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value) 在 System.Xaml.Schema.TypeReflector.ThreadSafeDictionary`2.TryGetValue(K name, V& member) 在 System.Xaml.XamlType.GetMember(String name) 在 System.Windows.Baml2006.Baml2006SchemaContext.GetProperty(Int16 propertyId, XamlType parentType) 在 System.Windows.Baml2006.Baml2006Reader.Process_PropertyIDictionaryStart() 在 System.Windows.Baml2006.Baml2006Reader.Process_OneBamlRecord() 在 System.Windows.Baml2006.Baml2006Reader.ReadObject(KeyRecord record) 在 System.Windows.ResourceDictionary.CreateObject(KeyRecord key) 在 System.Windows.ResourceDictionary.OnGettingValue(Object key, Object& value, Boolean& canCache) 在 System.Windows.ResourceDictionary.OnGettingValuePrivate(Object key, Object& value, Boolean& canCache) 在 System.Windows.ResourceDictionary.GetValueWithoutLock(Object key, Boolean& canCache) 在 System.Windows.ResourceDictionary.GetValue(Object key, Boolean& canCache) 在 System.Windows.DeferredResourceReference.GetValue(BaseValueSourceInternal valueSource) 在 System.Windows.DependencyPropertyChangedEventArgs.get_NewValue() 在 System.Windows.Controls.Control.OnTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) 在 System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) 在 System.Windows.StyleHelper.ApplyStyleOrTemplateValue(FrameworkObject fo, DependencyProperty dp) 在 System.Windows.StyleHelper.InvalidateContainerDependents(DependencyObject container, FrugalStructList`1& exclusionContainerDependents, FrugalStructList`1& oldContainerDependents, FrugalStructList`1& newContainerDependents) 在 System.Windows.StyleHelper.DoStyleInvalidations(FrameworkElement fe, FrameworkContentElement fce, Style oldStyle, Style newStyle) 在 System.Windows.StyleHelper.UpdateStyleCache(FrameworkElement fe, FrameworkContentElement fce, Style oldStyle, Style newStyle, Style& styleCache) 在 System.Windows.FrameworkElement.OnStyleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) 在 System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) 在 System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) 在 System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue) 在 System.Windows.FrameworkElement.UpdateStyleProperty() 在 System.Windows.TreeWalkHelper.InvalidateStyleAndReferences(DependencyObject d, ResourcesChangeInfo info, Boolean containsTypeOfKey) 在 System.Windows.TreeWalkHelper.OnResourcesChanged(DependencyObject d, ResourcesChangeInfo info, Boolean raiseResourceChangedEvent) 在 System.Windows.FrameworkElement.OnAncestorChangedInternal(TreeChangeInfo parentTreeState) 在 System.Windows.TreeWalkHelper.InvalidateOnTreeChange(FrameworkElement fe, FrameworkContentElement fce, DependencyObject parent, Boolean isAddOperation) 在 System.Windows.FrameworkElement.ChangeLogicalParent(DependencyObject newParent) 在 System.Windows.FrameworkElement.AddLogicalChild(Object child) 在 System.Windows.Controls.Decorator.set_Child(UIElement value) 在 MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetValue(Object inst, XamlMember property, Object value)