ArgumentOutOfRangeException
   在 ICSharpCode.AvalonEdit.Document.TextDocument.GetLineByOffset(Int32 offset)
   在 ICSharpCode.AvalonEdit.Document.TextDocument.GetLocation(Int32 offset)
   在 ICSharpCode.AvalonEdit.Editing.Caret.set_Offset(Int32 value)
   在 ICSharpCode.AvalonEdit.CodeCompletion.CompletionWindow.completionList_InsertionRequested(Object sender, EventArgs e)
   在 ICSharpCode.AvalonEdit.CodeCompletion.CompletionList.RequestInsertion(EventArgs e)
   在 ICSharpCode.AvalonEdit.CodeCompletion.CompletionList.HandleKey(KeyEventArgs e)
   在 ICSharpCode.AvalonEdit.CodeCompletion.CompletionWindow.OnKeyDown(KeyEventArgs e)
   在 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   在 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   在 ICSharpCode.AvalonEdit.CodeCompletion.CompletionWindowBase.RaiseEventPair(UIElement target, RoutedEvent previewEvent, RoutedEvent event, RoutedEventArgs args)
   在 ICSharpCode.AvalonEdit.CodeCompletion.CompletionWindowBase.InputHandler.OnPreviewKeyDown(KeyEventArgs e)
   在 ICSharpCode.AvalonEdit.Editing.TextArea.OnPreviewKeyDown(KeyEventArgs e)
   在 System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   在 System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   在 System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   在 System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   在 System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   在 System.Windows.Input.InputManager.ProcessStagingArea()
   在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   在 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   在 System.Windows.Interop.HwndKeyboardInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawKeyboardActions actions, Int32 scanCode, Boolean isExtendedKey, Boolean isSystemKey, Int32 virtualKey)
   在 System.Windows.Interop.HwndKeyboardInputProvider.ProcessKeyAction(MSG& msg, Boolean& handled)
   在 System.Windows.Interop.HwndSource.CriticalTranslateAccelerator(MSG& msg, ModifierKeys modifiers)
   在 System.Windows.Interop.HwndSource.OnPreprocessMessage(Object param)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)