Question

我已经在我的视图基类中添加了一个依赖项属性，它应该允许子UserControls在父窗口上设置一些属性，一个是SizeToContent。当我的OnSizeToContent方法运行时，当它试图将主窗口的SizeToContent从WidthAndHeight更改为Manual时，我得到了这个奇怪的错误：

检测到FatalExecutionEngineError 消息：运行时遇到致命错误。在线程0x17e8上，错误的地址为0x58e29ddd。错误代码是0x80131623。此错误可能是CLR中的错误，也可能是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-interop或PInvoke的用户封送错误，这可能会破坏堆栈。

之前从未见过这个错误，我不知道如何调试这个，搜索没有发现任何相关内容。

有人可以解读这个吗？

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：

我在设置SizeToContent时正在查看窗口的属性。 IsMeasureValid = false，IsArrangeValid = true ，但是来自msdn：

如果IsMeasureValid为false，则IsArrangeValid也必须为false（通过布局过程的强制逻辑，如果没有测量首先有效，则排列无效）。

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

我应该注意，我这样做了，所以我可以将ResizeMode =“CanResizeWithGrip”SizeToContent =“Manual”添加到我的XAML。

我做了一些InvalidateArrange和UpdateLayout的实验，但没有骰子。我可以没有它，但我真的很想弄明白......

Answer 1

查看System.Windows.UIElement.PropagateResumeLayout，如果在调用方法时测量或排列传递正在进行中，则断言失败。

您的UserControl是否有可能在调整大小时设置SizeToContent属性或WPF要求它执行布局或安排传递的任何其他状态？

设置SizeToContent fom Child UserControl导致FatalExecutionEngineError

1 个答案: