This is a migrated thread and some comments may be shown as answers.

KeyTipServices Bug

1 Answer 40 Views
RibbonView and RibbonWindow
This is a migrated thread and some comments may be shown as answers.
deepak
Top achievements
Rank 1
deepak asked on 06 Mar 2012, 04:09 PM
application crashes on pressing the access key for ribbontab with following error.
System.NullReferenceException was unhandled
  Message=Object reference not set to an instance of an object.
  Source=Telerik.Windows.Controls.RibbonView
  StackTrace:
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.ShowVisualChildrenTips(UIElement element)
       at Telerik.Windows.Controls.RibbonView.KeyTipService.<>c__DisplayClass16.<ShowTips>b__8()
       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)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
       at System.Windows.Threading.DispatcherOperation.InvokeImpl()
       at System.Threading.ExecutionContext.runTryCode(Object userData)
       at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Windows.Threading.DispatcherOperation.Invoke()
       at System.Windows.Threading.Dispatcher.ProcessQueue()
       at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       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)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
       at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
       at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
       at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
       at System.Windows.Application.RunInternal(Window window)
       at System.Windows.Application.Run()
     

1 Answer, 1 is accepted

Sort by
0
Miro Miroslavov
Telerik team
answered on 07 Mar 2012, 07:46 AM
Hello deepak,

 Can you give us more details on how you reproduce this issue?
Thank you.

All the best,
Miro Miroslavov
the Telerik team
Sharpen your .NET Ninja skills! Attend Q1 webinar week and get a chance to win a license! Book your seat now >>
Tags
RibbonView and RibbonWindow
Asked by
deepak
Top achievements
Rank 1
Answers by
Miro Miroslavov
Telerik team
Share this question
or