c# – 由Environment.FailFast崩溃的WPF_C

概述我正在研究为Kiosk(触摸屏)构建的 WPF应用程序.我们为自己构建虚拟键盘. 有一个屏幕我们使用带有TextBox的DataGrid控件列出一些项目(最多4个项目).虚拟键盘显示焦点(这就是它的构建方式). 当我们随机选择不同的项目时,应用程序崩溃而不会到达通用异常处理程序.此问题在触摸屏上可重复,但在常规屏幕中不可重复.事件日志显示如下, Application: CashNGo.WPF.e 我正在研究为Kiosk(触摸屏)构建的 WPF应用程序.我们为自己构建虚拟键盘.

有一个屏幕我们使用带有TextBox的DataGrID控件列出一些项目(最多4个项目).虚拟键盘显示焦点(这就是它的构建方式).

当我们随机选择不同的项目时,应用程序崩溃而不会到达通用异常处理程序.此问题在触摸屏上可重复,但在常规屏幕中不可重复.事件日志显示如下,

Application: CashNGo.WPF.exeFramework Version: v4.0.30319Description: The application requested process termination through System.Environment.FailFast(stringmessage).Message: Unrecoverable system error.Stack:   at System.Environment.FailFast(System.String)   at MS.Internal.Invariant.FailFast(System.String,System.String)   at MS.Internal.Invariant.Assert(Boolean,System.String)   at System.windows.documents.TextStore.VerifyTextStoreConsistency()   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+ITextStoreAcpsink.OnSelectionChange()   at System.windows.documents.TextStore.OnSelectionChanged()   at System.windows.documents.TextSelection.System.windows.documents.ITextRange.NotifyChanged(Boolean,Boolean)   at System.windows.documents.TextRangeBase.EndChange(System.windows.documents.ITextRange,Boolean,Boolean)   at System.windows.documents.TextSelection.System.windows.documents.ITextRange.Select(System.windows.documents.ITextPointer,System.windows.documents.ITextPointer)   at System.windows.Controls.TextBox.Select(Int32,Int32)   at System.windows.Controls.TextBox.set_CaretIndex(Int32)   at Common.Controls.softKeyboard.<.cctor>b__1c(System.windows.Controls.TextBox)   at System.windows.input.DelegateCommand`1[[System.__Canon,mscorlib,Version=4.0.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089]].Execute(System.__Canon)   at Common.Controls.softKeyboard+<>c__displayClass5.<SoftKeyboardFocus_Changed>b__0()   at System.windows.Threading.dispatcher.Invoke(System.Action,System.windows.Threading.dispatcherPriority,System.Threading.CancellationToken,System.TimeSpan)   at System.windows.Threading.dispatcher.Invoke(System.Action,System.windows.Threading.dispatcherPriority)   at Common.Extensions+<>c__displayClass1.<DelayedInvoke>b__0(System.Object,System.EventArgs)   at System.windows.Threading.dispatcherTimer.FireTick(System.Object)   at System.windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate,System.Object,Int32)   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object,System.Delegate,Int32,System.Delegate)  at System.windows.Threading.dispatcherOperation.InvokeImpl()   at System.windows.Threading.dispatcherOperation.InvokeInSecurityContext(System.Object)   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext,System.Threading.ContextCallback,Boolean)   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext,System.Object)   at System.windows.Threading.dispatcherOperation.Invoke()   at System.windows.Threading.dispatcher.ProcessQueue()   at System.windows.Threading.dispatcher.WndProcHook(IntPtr,IntPtr,BooleanByRef)   at MS.Win32.HwnDWrapper.WndProc(IntPtr,Boolean ByRef)   at MS.Win32.HwndSubclass.dispatcherCallbackOperation(System.Object)   at System.windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate,System.Delegate)   at System.windows.Threading.dispatcher.LegacyInvokeImpl(System.windows.Threading.dispatcherPriority,System.TimeSpan,Int32)   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr,IntPtr)   at MS.Win32.UnsafeNativeMethods.dispatchMessage(System.windows.Interop.MSG ByRef)   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(System.windows.Window)   at System.windows.Application.Run()   at CashNGo.WPF.App.Main()

我做了一些搜索,找到了http://social.msdn.microsoft.com/Forums/vstudio/en-US/dfbd2526-8953-4ce8-97c2-43246fd251c0/wpf-framework-crashing-on-setting-foxus-in-textbox?forum=wpf,这是完全相同的例外.

任何建议都会有所帮助.

解决方法关闭一个名为的windows服务.