设置子用户控件的 SizeToContent 会导致 FatalExecutionEngineError

Question

我在视图基类中添加了一个依赖属性，该属性应该允许子 UserControls 在父窗口上设置一些属性，其中之一是 SizeToContent。当我的 OnSizeToContent 方法运行时，当它尝试将主窗口的 SizeToContent 从 WidthAndHeight 更改为手动时，我收到这个奇怪的错误：

检测到 FatalExecutionEngineError 消息：运行时遇到致命错误。错误的地址位于线程 0x17e8 上的 0x58e29ddd。错误代码为0x80131623。此错误可能是 CLR 中的错​​误或用户代码的不安全或不可验证部分中的错误。此错误的常见来源包括 COM 互操作或 PInvoke 的用户封送错误，这可能会损坏堆栈。

以前从未见过此错误，我不知道如何调试此错误，搜索没有找到任何相关内容。

有人能破译这个吗？

private static void OnSizeToContentChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
     if (Designer.IsInDesignMode)
          return;
     ((ViewBase) o).MainWindow.SizeToContent = (SizeToContent) e.NewValue;
}

private static readonly DependencyProperty SizeToContentProperty = 
     DependencyProperty.Register("SizeToContent", typeof(SizeToContent), typeof(ViewBase),
          new UIPropertyMetadata(SizeToContent. WidthAndHeight, OnSizeToContentChanged));

这是 OnSizeToContentChanged 之后的部分堆栈跟踪：

WindowsBase.dll!MS.Internal.Invariant.FailFast(string message, string detailMessage) + 0x35 bytes   
    WindowsBase.dll!MS.Internal.Invariant.Assert(bool condition) + 0x2b bytes   
    PresentationCore.dll!System.Windows.UIElement.PropagateResumeLayout(System.Windows.Media.Visual parent, System.Windows.Media.Visual v = {System.Windows.Controls.Grid}) + 0xc4 bytes    
    PresentationCore.dll!System.Windows.UIElement.PropagateResumeLayout(System.Windows.Media.Visual parent, System.Windows.Media.Visual v = {System.Windows.Controls.ItemsPresenter}) + 0x158 bytes 
    PresentationCore.dll!System.Windows.UIElement.PropagateResumeLayout(System.Windows.Media.Visual parent, System.Windows.Media.Visual v = {System.Windows.Controls.Border}) + 0x158 bytes 
    PresentationCore.dll!System.Windows.UIElement.PropagateResumeLayout(System.Windows.Media.Visual parent, System.Windows.Media.Visual v = {System.Windows.Controls.ItemsControl}) + 0x158 bytes   
    PresentationCore.dll!System.Windows.Media.Visual.AddVisualChild(System.Windows.Media.Visual child = {System.Windows.Controls.ItemsControl}) + 0x4f bytes    
    PresentationFramework.dll!System.Windows.FrameworkElement.TemplateChild.set(System.Windows.UIElement value) + 0x32 bytes    
    PresentationFramework.dll!System.Windows.Controls.ContentPresenter.UseContentTemplate.BuildVisualTree(System.Windows.FrameworkElement container) + 0xa4 bytes   
    PresentationFramework.dll!System.Windows.StyleHelper.ApplyTemplateContent(System.Windows.UncommonField<System.Collections.Specialized.HybridDictionary[]> dataField, System.Windows.DependencyObject container, System.Windows.FrameworkElementFactory templateRoot, int lastChildIndex, System.Collections.Specialized.HybridDictionary childIndexFromChildID, System.Windows.FrameworkTemplate frameworkTemplate) + 0x1c9 bytes   
    PresentationFramework.dll!System.Windows.FrameworkTemplate.ApplyTemplateContent(System.Windows.UncommonField<System.Collections.Specialized.HybridDictionary[]> templateDataField, System.Windows.FrameworkElement container = {System.Windows.Controls.ContentPresenter}) + 0x3b bytes 
    PresentationFramework.dll!System.Windows.FrameworkElement.ApplyTemplate() + 0x7b bytes  
    PresentationFramework.dll!System.Windows.FrameworkElement.MeasureCore(System.Windows.Size availableSize) + 0x40 bytes   
    PresentationCore.dll!System.Windows.UIElement.Measure(System.Windows.Size availableSize) + 0x207 bytes  
    PresentationFramework.dll!System.Windows.Documents.AdornerDecorator.MeasureOverride(System.Windows.Size constraint) + 0x61 bytes    
    PresentationFramework.dll!System.Windows.FrameworkElement.MeasureCore(System.Windows.Size availableSize) + 0x1d6 bytes  
    PresentationCore.dll!System.Windows.UIElement.Measure(System.Windows.Size availableSize) + 0x207 bytes  
    PresentationFramework.dll!System.Windows.Controls.Grid.MeasureOverride(System.Windows.Size constraint) + 0x18c bytes    
    PresentationFramework.dll!System.Windows.FrameworkElement.MeasureCore(System.Windows.Size availableSize) + 0x1d6 bytes  
    PresentationCore.dll!System.Windows.UIElement.Measure(System.Windows.Size availableSize) + 0x207 bytes  
    PresentationFramework.dll!System.Windows.Controls.Border.MeasureOverride(System.Windows.Size constraint) + 0x18f bytes  
    PresentationFramework.dll!System.Windows.FrameworkElement.MeasureCore(System.Windows.Size availableSize) + 0x1d6 bytes  
    PresentationCore.dll!System.Windows.UIElement.Measure(System.Windows.Size availableSize) + 0x207 bytes  
    PresentationFramework.dll!System.Windows.Window.MeasureOverrideHelper(System.Windows.Size constraint) + 0x14b bytes 
    PresentationFramework.dll!System.Windows.Window.MeasureOverride(System.Windows.Size availableSize) + 0xd6 bytes 
    PresentationFramework.dll!System.Windows.FrameworkElement.MeasureCore(System.Windows.Size availableSize) + 0x526 bytes  
    PresentationCore.dll!System.Windows.UIElement.Measure(System.Windows.Size availableSize) + 0x207 bytes  
    PresentationCore.dll!System.Windows.Interop.HwndSource.SetLayoutSize() + 0xbf bytes 
    PresentationCore.dll!System.Windows.Interop.HwndSource.SizeToContent.set(System.Windows.SizeToContent value) + 0x60 bytes   
    PresentationFramework.dll!System.Windows.Window.OnSizeToContentChanged(System.Windows.SizeToContent sizeToContent) + 0x60 bytes 
    PresentationFramework.dll!System.Windows.Window._OnSizeToContentChanged(System.Windows.DependencyObject d, System.Windows.DependencyPropertyChangedEventArgs e) + 0x52 bytes    
    WindowsBase.dll!System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e) + 0x4c bytes 
    PresentationFramework.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs e) + 0x50 bytes   
    WindowsBase.dll!System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs args) + 0x3c bytes   
    WindowsBase.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex entryIndex = {System.Windows.EntryIndex}, System.Windows.DependencyProperty dp = {System.Windows.DependencyProperty}, System.Windows.PropertyMetadata metadata, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry = {System.Windows.EffectiveValueEntry}, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType) + 0x723 bytes    
    WindowsBase.dll!System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty dp, object value, System.Windows.PropertyMetadata metadata, bool coerceWithDeferredReference, bool coerceWithCurrentValue, System.Windows.OperationType operationType, bool isInternal) + 0x2eb bytes  
    WindowsBase.dll!System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty dp, object value) + 0x35 bytes   
    PresentationFramework.dll!System.Windows.Window.SizeToContent.set(System.Windows.SizeToContent value) + 0x4c bytes  
>   UCL.exe!UCL.Classes.ViewBase.OnSizeToContentChanged(System.Windows.DependencyObject o = {UCL.Views.EditorView}, System.Windows.DependencyPropertyChangedEventArgs e = {System.Windows.DependencyPropertyChangedEventArgs}) Line 50 + 0x67 bytes C#

编辑#1：

设置 SizeToContent 后，我​​正在查看窗口的属性。 IsMeasureValid = false，IsArrangeValid = true ，但来自 msdn：

如果 IsMeasureValid 为 false，则 IsArrangeValid 也必须为 false（通过布局过程的强制逻辑，如果测量首先有效，排列就不可能有效）。

我有一个类似的 ResizeMode 属性，当它发生变化时，似乎设置了 IsMeasureValid=false。

我应该注意，我这样做是为了将 ResizeMode="CanResizeWithGrip" SizeToContent="Manual" 添加到我的 XAML 中。

我用 InvalidateArrange 和 UpdateLayout 做了一些实验，但没有骰子。 没有它我也可以生活，但我真的很想弄清楚......

Answer 1

查看 System.Windows.UIElement.PropagateResumeLayout，如果调用该方法时测量或排列过程已在进行中，则断言将失败。

您的 UserControl 是否有可能在调整大小时或 WPF 要求其执行布局或排列过程的任何其他状态时尝试设置 SizeToContent 属性？