关于wpf 的richtextbox 在修改文本时出现System.Environment.FailFast(string message)导致崩溃

丶岳 0

wpf 的richtexbox 打包后在部分windows 10 电脑中运行，全选richtextbox内容导致后，按下键盘某个键后直接崩溃。

Application: iTourTranslator.exe

CoreCLR Version: 6.0.2223.42425

.NET Version: 6.0.22

Description: The application requested process termination through System.Environment.FailFast(string message).

Message: Unrecoverable system error.

Stack:

at System.Environment.FailFast(System.String)

at System.Windows.Documents.TextStore.OnStartComposition(ITfCompositionView, Boolean ByRef)

at MS.Win32.UnsafeNativeMethods+ITextStoreACPSink.OnLockGranted(LockFlags)

at System.Windows.Documents.TextStore.GrantLock()

at System.Windows.Documents.TextStore.GrantLockWorker(LockFlags)

at System.Windows.Documents.TextStore.RequestLock(LockFlags, Int32 ByRef)

at MS.Win32.UnsafeNativeMethods+ITfMessagePump.GetMessageW(System.Windows.Interop.MSG ByRef, IntPtr, Int32, Int32, Int32 ByRef)

at System.Windows.Threading.Dispatcher.GetMessage(System.Windows.Interop.MSG ByRef, IntPtr, Int32, Int32)

at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)

at System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame)

at System.Windows.Threading.Dispatcher.Run()

at System.Windows.Application.RunDispatcher(System.Object)

at System.Windows.Application.RunInternal(System.Windows.Window)

at System.Windows.Application.Run()

at iTour.App.Main()

Jiale Xue - MSFT 48,441 信誉分 Microsoft 供应商

2024-07-16T09:07:50.08+00:00

请不要在中午论坛发布英文问题，您可以将其修改为中文。英文论坛在：https://learn.microsoft.com/en-us/answers/questions/ask/

如果您的问题与WPF有关，请加上相应的Tag.
Hui Liu-MSFT 48,586 信誉分 Microsoft 供应商

2024-07-16T09:47:02.6333333+00:00

在 WPF 中选择所有内容并输入中文字符时遇到的 RichTextBox 问题可能与文本输入框架 (TIF) 与某些输入法 (IME) 结合使用时出现的已知错误或问题有关。

更新 .NET 和 Visual Studio 确保您使用的是最新版本的 .NET 和 Visual Studio。

你可以分享可以重现你的问题的代码示例代码和步骤吗？

丶岳 0

部分电脑打开后，直接双击richtextbox控件内容全选后，(中文输入法)按下键盘的任意字母键后崩溃，(英文输入法)没有崩溃情况，输入法是windows自带的

下面是richtextbox的部分实现代码

<behavior:BindableRichTextBox

 x:Name="txtSource"

 Width="{Binding ElementName=lbRecord, Path=ActualWidth, Converter={StaticResource WidthConverter}, ConverterParameter=25}"

 Margin="10,10,10,0"

 BindableDocument="{Binding Translation}"

 BorderThickness="0"

 FontSize="15"

 IsUndoEnabled="True"

 Loaded="txtSource_Loaded"

 PreviewKeyDown="txtSource_PreviewKeyDown"

 PreviewMouseLeftButtonUp="txtSource_PreviewMouseLeftButtonUp"

 ScrollViewer.PanningMode="None"

 SelectionChanged="txtSource_SelectionChanged"

 Tag="{Binding Tag}"

 TextChanged="txtSource_TextChanged"/>

private void txtSource_TextChanged(object sender, TextChangedEventArgs e)

{

 if (isSearch) return;

 if (sender is RichTextBox rtb)

 {

     previousSelectionStart = rtb.Document.ContentStart.GetOffsetToPosition((sender as RichTextBox).Selection.Start);

     index = rtb.Tag.ToString();

     UpdateLocation(rtb, rtb.CaretPosition);

 }

}

    private void txtSource_SelectionChanged(object sender, RoutedEventArgs e)

    {

        var currentSelectionStart = (sender as RichTextBox).Selection.Start;

        if (sender is RichTextBox rtb && !rtb.Selection.Text.Equals("") && !isLink)

        {

            try

            {

                //var s = rtb.DataContext as RecordMessage;

                //object cr = s.Record.CreateTime;

                //(this.DataContext as NoteViewModel).SendAudioPlay(cr);

                object fontSize = rtb.Selection.GetPropertyValue(TextElement.FontSizeProperty);

                if (fontSize != null && fontSize != DependencyProperty.UnsetValue)

                {

                    cboPL.SelectedItem = fontSize.ToString();

                }

                else if (fontSize == DependencyProperty.UnsetValue)

                {

                    cboPL.SelectedIndex = -1;

                }

                else

                {

                    cboPL.SelectedItem = "15";

                }

            }

            catch { }

            try

            {

                object isBold = rtb.Selection.GetPropertyValue(TextElement.FontWeightProperty);

                if ((isBold is FontWeight isbold) && isbold == FontWeights.Bold)

                {

                    btnCT.Background = Brushes.Gray;

                }

                else

                {

                    btnCT.Background = Brushes.Transparent;

                }

            }

            catch { }

            try

            {

                object isItalic = rtb.Selection.GetPropertyValue(TextElement.FontStyleProperty);

                if ((isItalic is FontStyle italic) && italic == FontStyles.Italic)

                {

                    btnXT.Background = Brushes.Gray;

                }

                else

                {

                    btnXT.Background = Brushes.Transparent;

                }

            }

            catch { }

            try

            {

                object isUnderline = rtb.Selection.GetPropertyValue(Inline.TextDecorationsProperty);

                if ((isUnderline is TextDecorationCollection textDecorations) && textDecorations == TextDecorations.Underline)

                {

                    btnXHX.Background = Brushes.Gray;

                }

                else

                {

                    btnXHX.Background = Brushes.Transparent;

                }

            }

            catch { }

        }

        else

        {

            btnCT.Background = Brushes.Transparent;

            btnXT.Background = Brushes.Transparent;

            btnXHX.Background = Brushes.Transparent;

        }

        int i = (sender as RichTextBox).Document.ContentStart.GetOffsetToPosition(currentSelectionStart);

        if (i != previousSelectionStart)

        {

            previousSelectionStart = i;

            IsChangePosition = true;

        }

    }

    private void txtSource_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)

    {

        if (sender is RichTextBox rtb)

        {

            richTextBox = rtb;

            Keyboard.Focus(rtb);

            isLink = false;

            var index = richTextBox.Document.ContentStart.GetOffsetToPosition(richTextBox.CaretPosition);

            if (rtb.DataContext != null && rtb.DataContext is RecordMessage notes && notes.CommentList != null)

            {

                foreach (var note in notes.CommentList)

                {

                    if (index < note.EndIndex && index > note.StartIndex)

                    {

                        TextPointer textPointer = rtb.Document.ContentStart;

                        richTextBox.Selection.Select(GetTextOffset(textPointer, note.StartIndex), GetTextOffset(textPointer, note.EndIndex));

                        isLink = true;

                        break;

                    }

                }

                isLink = false;

            }

        };

    }

丶岳 0 信誉分

2024-07-16T10:53:15.1033333+00:00

win11系统极少会出现崩溃问题，win10系统必现的
Hui Liu-MSFT 48,586 信誉分 Microsoft 供应商

2024-07-17T02:40:55.65+00:00

为了解决您在 WPF 应用程序中遇到的 RichTextBox 问题，我需要查看完整的实现，包括事件处理程序和任何相关逻辑。对于behavior 代表的命名空间，如果使用了三方包，具体使用了哪个Nuget包？如果是自定义控件是否可以分享代码？

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