Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid:本地创建的对象属于不同的线程？

Question

只是看看它，它没有任何意义：

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这些对象是在本地创建的，没有外部依赖项。怎么会这样呢？

(这里创建的类型是一个Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid)

下面是堆栈跟踪：

at System.Windows.Threading.Dispatcher.VerifyAccess()
at System.Windows.SystemResources.FindCachedResource(Object key, Object& resource, Boolean mustReturnDeferredResourceReference)
at System.Windows.SystemResources.FindResourceInternal(Object key, Boolean allowDeferredResourceReference, Boolean mustReturnDeferredResourceReference)
at System.Windows.FrameworkElement.FindResourceInternal(FrameworkElement fe, FrameworkContentElement fce, DependencyProperty dp, Object resourceKey, Object unlinkedParent, Boolean allowDeferredResourceReference, Boolean mustReturnDeferredResourceReference, DependencyObject boundaryElement, Boolean isImplicitStyleLookup, Object& source)
at System.Windows.FrameworkElement.FindResource(Object resourceKey)
at Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid.UpdateContainerHelper()
at Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid.OnSelectedObjectChanged(Object oldValue, Object newValue)
at Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid.OnSelectedObjectChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at Xceed.Wpf.Toolkit.PropertyGrid.PropertyGrid.set_SelectedObject(Object value)
at GuiHelpers.Dialogs.PropertiesDialog.<>c__DisplayClass11.<Show>b__d() in c:\projects\pro\GuiHelpers\Dialogs\PropertiesDialog.cs:line 44

Answer 1

在使用调度程序对UI线程执行某些初始化的情况下，您应该能够使用如下内容：

System.Windows.Application.Current.Dispatcher.Invoke(
    System.Windows.Threading.DispatcherPriority.Normal,
    (System.Action)delegate()
    {
         tempPropertyGrid.SelectedObject = new object();
    });

我不确定这是否解决了您的问题，但它可能值得一试。