我们经常为DataGrid获取此异常，并且我们正在尝试重现它，但我们无法找到此问题的原因。
StackTrace就是这样：
System.Windows.Controls.ItemCollection.GetItemAt（Int32 index）zh_cn System.Windows.Controls.VirtualizedCellInfoCollection.Contains（DataGridCell cell）zh_cn System.Windows.Controls.DataGridCell.PrepareCell（Object item，DataGridRow ownerRow，Int32 index） zh_cn System.Windows.Controls.DataGridCell.PrepareCell（Object item，ItemsControl cellsPresenter，DataGridRow ownerRow）zh_cn System.Windows.Controls.ItemsControl.MS.Internal.Controls.IGeneratorHost.PrepareItemContainer（DependencyObject container，Object item）zh_cn System.Windows。 Controls.ItemContainerGenerator.OnItemReplaced（Object oldItem，Object newItem，Int32 index）zh_cn System.Windows.Controls.ItemContainerGenerator.OnCollectionChanged（Object sender，NotifyCollectionChangedEventArgs args）zh_cn System.Windows.Controls.ItemContainerGenerator.System.Windows.IWeakEventListener.ReceiveWeakEvent（Type managerType，Object sender，EventArgs e）zh_cn System.Windows.WeakEventManager.DeliverEventToList（Object sender，EventArgs args，ListenerList list）zh System.W indows.WeakEventManager.DeliverEvent（Object sender，EventArgs args）zh_cn System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke（Object sender，NotifyCollectionChangedEventArgs e）zh_cn System.Windows.Data.CollectionView.OnCollectionChanged（NotifyCollectionChangedEventArgs args）zh_cn System.Windows.Controls。 ItemCollection.System.Windows.IWeakEventListener.ReceiveWeakEvent（类型managerType，Object sender，EventArgs e）zh_cn System.Windows.WeakEventManager.DeliverEventToList（Object sender，EventArgs args，ListenerList list）zh_cn System.Windows.WeakEventManager.DeliverEvent（Object sender，EventArgs args）zh_cn System.Windows.Data.CollectionView.OnCollectionChanged（NotifyCollectionChangedEventArgs args）zh_cn System.Windows.Data.ListCollectionView.ProcessCollectionChangedWithAdjustedIndex（NotifyCollectionChangedEventArgs args，Int32 adjustedOldIndex，Int32 adjustedNewIndex）zh_cn System.Windows.Controls.MultipleCopiesCollection.set_CopiedItem（Object value） en System.Windows.Controls.DataGridR ow.NotifyPropertyChanged（DependencyObject d，String propertyName，DependencyPropertyChangedEventArgs e，DataGridNotificationTarget target）zh_cn System.Windows.Controls.DataGridRow.NotifyPropertyChanged（DependencyObject d，DependencyPropertyChangedEventArgs e，DataGridNotificationTarget target）zh_cn System.Windows.Controls.DataGridRow.OnNotifyRowPropertyChanged（DependencyObject d， DependencyPropertyChangedEventArgs E）EN System.Windows.DependencyObject.OnPropertyChanged（DependencyPropertyChangedEventArgs E）EN System.Windows.FrameworkElement.OnPropertyChanged（DependencyPropertyChangedEventArgs E）EN System.Windows.Controls.DataGridRow.OnPropertyChanged（DependencyPropertyChangedEventArgs E）EN System.Windows.DependencyObject.NotifyPropertyChange（ DependencyPropertyChangedEventArgs args）zh_cn System.Windows.DependencyObject.UpdateEffectiveValue（EntryIndex entryIndex，DependencyProperty dp，PropertyMetadata metadata，EffectiveValueEntry oldEntry，EffectiveValueEntry＆amp; newEntry，Boolean coerceWithDeferredReference，Boolean coerceWithCurrentValue，OperationType operationType）zh_cn System.Windows.DependencyObject.SetValueCommon（DependencyProperty dp，Object value，PropertyMetadata metadata，Boolean coerceWithDeferredReference，Boolean coerceWithCurrentValue，OperationType operationType，Boolean isInternal）zh_cn System.Windows.DependencyObject.SetValue（ DependencyProperty dp，Object value）zh_cn System.Windows.Controls.DataGridRow.PrepareRow（Object item，DataGrid owningDataGrid）zh_cn System.Windows.Controls.DataGrid.PrepareContainerForItemOverride（DependencyObject element，Object item）zh_cn System.Windows.Controls.ItemsControl.MS .Internal.Controls.IGeneratorHost.PrepareItemContainer（DependencyObject容器，Object项）zh_cn System.Windows.Controls.VirtualizingStackPanel.InsertContainer（Int32 childIndex，UIElement container，Boolean isRecycled）zh_cn System.Windows.Controls.VirtualizingStackPanel.AddContainerFromGenerator（Int32 childIndex，UIElement孩子，布尔ne wlyRealized）zh_cn System.Windows.Controls.VirtualizingStackPanel.GeneratePreviousChild（Int32 childIndex，Size layoutSlotSize）zh_cn System.Windows.Controls.VirtualizingStackPanel.EnsureTopCapGenerated（Size layoutSlotSize）zh_cn System.Windows.Controls.VirtualizingStackPanel.MeasureOverride（Size constraint）zh System。 Windows.Controls.Primitives.DataGridRowsPresenter.MeasureOverride（Size constraint）zh System.Windows.FrameworkElement.MeasureCore（Size availableSize）zh_cn System.Windows.UIElement.Measure（Size availableSize）zh_cn System.Windows.ContextLayoutManager.UpdateLayout（）en System。 Windows.ContextLayoutManager.UpdateLayoutCallback（Object arg）zh_cn System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks（）zh_cn System.Windows.Media.MediaContext.RenderMessageHandlerCore（Object resizedCompositionTarget）zh_cn System.Windows.Media.MediaContext.RenderMessageHandler（Object resizedCompositionTarget）zh_cn System.Windows.Threading.ExceptionWrapper.InternalRealCall（委托回调，对象args，Int32 numAr gs）en MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen（Object source，Delegate方法，Object args，Int32 numArgs，Delegate catchHandler）
或者这个：
在System.Windows.Controls.VirtualizedCellInfoCollection.Contains（DataGridCell单元格）System.Windows.Controls.DataStrid.PetpareCell（对象项，DataGridRow ownerRow，Int32索引）的System.Windows.Controls.ItemCollection.GetItemAt（Int32索引） ）在System.Windows.Controls.DataStrid上的System.Windows.Controls.DataGridCell.PrepareCell（Object item，ItemsControl cellsPresenter，DataGridRow ownerRow）处于System.Windows.Controls.DataGridRow.SyncProperties（Boolean forcePrepareCells）的System.Windows.Controls.Primitives.DataGridCellsPresenter.SyncProperties（Boolean forcePrepareCells） ）System.Windows.Controls.ItemsControl.MS.Internal.Controls中System.Windows.Controls.DataGrid.PrepareContainerForItemOverride（DependencyObject元素，Object item）的System.Windows.Controls.DataGridRow.PrepareRow（Object item，DataGrid owningDataGrid）。 System.Windows.Controls.VirtualizingStackPanel.InsertContainer（Int32 childIndex，UIElement container，Boolean i）中的IGeneratorHost.PrepareItemContainer（DependencyObject容器，Object项） sRecycled）在System.Windows.Controls.VirtualizingStackPanel.EnsureTopCapGenerated的System.Windows.Controls.VirtualizingStackPanel.GeneratePreviousChild（Int32 childIndex，Size layoutSlotSize）上的System.Windows.Controls.VirtualizingStackPanel.AddContainerFromGenerator（Int32 childIndex，UIElement child，BooleannewRealized）。在System.Windows上的System.Windows.FrameworkElement.MeasureCore（Size availableSize）的System.Windows.Controls.Primitives.DataGridRowsPresenter.MeasureOverride（Size约束）处的System.Windows.Controls.VirtualizingStackPanel.MeasureOverride（Size约束）处调整sizeSlotSize大小。 System.Windows.Media.MediaContext上的System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks（）处的System.Windows.ContextLayoutManager.UpdateLayoutCallback（Object arg）处的System.Windows.ContextLayoutManager.UpdateLayout（）处的UIElement.Measure（Size availableSize）。 System.Windows.Media.MediaContext.RenderMessageHandler（Object中的RenderMessageHandlerCore（Object resizedCompositionTarget） ResizedCompositionTarget）在MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen（对象源，委托方法，对象args，Int32 numArgs，Delegate catchHandler）的System.Windows.Threading.ExceptionWrapper.InternalRealCall（委托回调，对象args，Int32 numArgs）中
我们发现了一些关于EnableColumnVirtualization的帖子（设置为false），但这没有帮助，我们仍然得到相同的异常。我们几乎没有关于如何重现或修复此异常的想法。有没有人知道如何解决这个问题？
答案 0 :(得分：0)