.net - 使用WPF的ShowDialog打开表单时发生异常

Question

我有一个WPF应用程序，当尝试使用ShowDialog()打开表单时，我在一台计算机上收到以下奇怪的异常。
知道可能是什么问题吗？

Exception Message = Operation aborted (Exception from HRESULT: 0x80004004 (E_ABORT)) Exception stack trace =
at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHR(Int32 errorCode, IntPtr errorInfo) at MS.Internal.Text.TextInterface.Native.Util.ConvertHresultToException(Int32 hr) at MS.Internal.Text.TextInterface.FontCollection.FindFamilyName(String familyName, UInt32& index) at MS.Internal.FontCache.FamilyCollection.LookupFamily(String familyName, FontStyle& fontStyle, FontWeight& fontWeight, FontStretch& fontStretch) at System.Windows.Media.FontFamily.LookupFontFamilyAndFace(CanonicalFontFamilyReference canonicalFamilyReference, FontStyle& style, FontWeight& weight, FontStretch& stretch) at System.Windows.Media.FontFamily.FindFirstFontFamilyAndFace(FontStyle& style, FontWeight& weight, FontStretch& stretch) at System.Windows.Media.Typeface.ConstructCachedTypeface() at System.Windows.Media.Typeface.get_CachedTypeface() at MS.Internal.TextFormatting.SimpleTextLine..ctor(FormatSettings settings, Int32 cpFirst, Int32 paragraphWidth, ArrayList runs, Int32& trailing, Int32& trailingSpaceWidth)
at MS.Internal.TextFormatting.SimpleTextLine.Create(FormatSettings settings, Int32 cpFirst, Int32 paragraphWidth) at MS.Internal.TextFormatting.TextFormatterImp.FormatLineInternal(TextSource textSource, Int32 firstCharIndex, Int32 lineLength, Double paragraphWidth, TextParagraphProperties paragraphProperties, TextLineBreak previousLineBreak, TextRunCache textRunCache) at MS.Internal.TextFormatting.TextFormatterImp.FormatLine(TextSource textSource, Int32 firstCharIndex, Double paragraphWidth, TextParagraphProperties paragraphProperties, TextLineBreak previousLineBreak, TextRunCache textRunCache) at System.Windows.Controls.TextBoxLine.Format(Int32 dcp, Double formatWidth, Double paragraphWidth, LineProperties lineProperties, TextRunCache textRunCache, TextFormatter formatter) at System.Windows.Controls.TextBoxView.FullMeasureTick(Double constraintWidth, LineProperties lineProperties) at System.Windows.Controls.TextBoxView.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) at System.Windows.Controls.ScrollContentPresenter.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.ScrollViewer.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Border.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Control.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV) at System.Windows.Controls.Grid.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.StackPanel.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint) at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Border.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Window.MeasureOverrideHelper(Size constraint) at System.Windows.Window.MeasureOverride(Size availableSize) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Interop.HwndSource.SetLayoutSize() at System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value) at System.Windows.Interop.HwndSource.set_RootVisual(Visual value) at System.Windows.Window.SetRootVisual() at System.Windows.Window.SetRootVisualAndUpdateSTC() at System.Windows.Window.SetupInitialState(Double requestedTop, Double requestedLeft, Double requestedWidth, Double requestedHeight) at System.Windows.Window.CreateSourceWindow(Boolean duringShow) at System.Windows.Window.CreateSourceWindowDuringShow() at System.Windows.Window.SafeCreateWindowDuringShow() at System.Windows.Window.ShowHelper(Object booleanBox) at System.Windows.Window.Show() at System.Windows.Window.ShowDialog()
at Alberstein.UI.Views.MainView.menuWorkOnline_Click(Object sender, RoutedEventArgs e) at Alberstein.UI.Views.MainView.checkSyncstatus() at Alberstein.UI.App.OnStartup(Object sender, StartupEventArgs e) at System.Windows.Application.OnStartup(StartupEventArgs e) at System.Windows.Application.<.ctor>b__1(Object unused) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

Answer 1

我遇到了同样的错误，问题出在Windows Presentation Foundation字体缓存服务。它的缓存文件已损坏。按照此MS KB文章中的说明进行操作，
http://support.microsoft.com/kb/937135，我能够解决问题。

这适用于缓存的3.0.0.0和4.0.0.0版本。

在找到该文章之前，我刚刚停止并禁用了该服务，然后我的WPF应用程序立即启动。我怀疑禁用它会导致显示WPF应用程序的速度变慢(已经足够慢了)，但是在现场有多台计算机遇到此问题之后，我禁用了它，此后就没有任何问题。