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Automation Failure on Windows 8 touch device

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This is a migrated thread and some comments may be shown as answers.
Steve Hopkins
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Steve Hopkins asked on 20 Dec 2012, 09:56 PM 
I'm getting the following stack trace when I run my app on a brand new Samsung Ativ Windows 8 touch device.


NullReferenceException
at Telerik.Windows.Automation.Peers.GridViewGroupPanelAutomationPeer.GetChildrenCore() in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Automation\GridViewGroupPanelAutomationPeer.cs:line 44
   at System.Windows.Automation.Peers.AutomationPeer.EnsureChildren()
   at System.Windows.Automation.Peers.AutomationPeer.GetChildren()
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.isDescendantOf(AutomationPeer parent)
   at System.Windows.Automation.Peers.AutomationPeer.ValidateConnected(AutomationPeer connectedPeer)
   at System.Windows.Automation.Peers.AutomationPeer.AutomationPeerFromInputElement(IInputElement focusedElement)
   at System.Windows.Automation.Peers.AutomationPeer.RaiseFocusChangedEventHelper(IInputElement newFocus)
   at System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp)
   at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)
   at System.Windows.UIElement.Focus()
   at System.Windows.Controls.ListBoxItem.HandleMouseButtonDown(MouseButton mouseButton)
   at System.Windows.Controls.ListBoxItem.OnMouseLeftButtonDown(MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.StylusDevice.PlayBackCachedDownInputReport(Int32 timestamp)
   at System.Windows.Input.StylusLogic.PromoteStoredItemsToMouse(StylusTouchDevice touchDevice)
   at System.Windows.Input.StylusTouchDevice.OnManipulationEnded(Boolean cancel)
   at System.Windows.Input.TouchDevice.System.Windows.Input.IManipulator.ManipulationEnded(Boolean cancel)
   at System.Windows.Input.ManipulationDevice.OnManipulationCancel()
   at System.Windows.Input.ManipulationDevice.PostProcessInput(Object sender, ProcessInputEventArgs e)
   at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.ManipulationDevice.ProcessManipulationInput(InputEventArgs e)
   at System.Windows.Input.ManipulationLogic.ReportFrame(ICollection`1 manipulators)
   at System.Windows.Input.ManipulationDevice.ReportFrame()
   at System.Windows.Input.ManipulationDevice.RemoveManipulator(IManipulator manipulator)
   at System.Windows.Input.Manipulation.TryRemoveManipulator(UIElement element, IManipulator manipulator)
   at System.Windows.Input.TouchDevice.PromoteMainToManipulation(UIElement manipulatableElement, TouchEventArgs touchEventArgs)
   at System.Windows.Input.TouchDevice.PostProcessInput(Object sender, ProcessInputEventArgs e)
   at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.TouchDevice.RaiseLostCapture(IInputElement oldCapture)
   at System.Windows.Input.TouchDevice.Capture(IInputElement element, CaptureMode captureMode)
   at System.Windows.Input.TouchDevice.PromoteMainToManipulation(UIElement manipulatableElement, TouchEventArgs touchEventArgs)
   at System.Windows.Input.TouchDevice.PostProcessInput(Object sender, ProcessInputEventArgs e)
   at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.TouchDevice.RaiseTouchUp()
   at System.Windows.Input.TouchDevice.ReportUp()
   at System.Windows.Input.StylusLogic.PromoteMainUpToTouch(StylusDevice stylusDevice, StagingAreaInputItem stagingItem)
   at System.Windows.Input.StylusLogic.PromoteMainToTouch(ProcessInputEventArgs e, StylusEventArgs stylusEventArgs)
   at System.Windows.Input.StylusLogic.PromoteMainToOther(ProcessInputEventArgs e)
   at System.Windows.Input.StylusLogic.PostProcessInput(Object sender, ProcessInputEventArgs e)
   at System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.StylusLogic.InputManagerProcessInput(Object oInput)
   at System.Windows.Input.StylusLogic.PreProcessInput(Object sender, PreProcessInputEventArgs e)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(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)


All I have to do in order to get the exception is navigate to page in my app with a grid view on it. 

The only thing I've found that works as a work-around is to manually kill the TabTip.exe. This is obviously not an ideal solution.

Here's further information about the machine:
Operating System: Windows 8
Processor: Intel Atom CPU Z2760 @ 1.80 GHz
Installed Memory: 2.00 GB
System Type: 32-bit Operation System, x86-based processor
Pen and Touch: Pen and Full Windows Touch Support with 5 Touch Points

3 Answers, 1 is accepted

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Vlad
Telerik team
answered on 21 Dec 2012, 07:49 AM
Hi,

 Can you post the grid version? 

Greetings,
Vlad
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Steve Hopkins
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Rank 2
answered on 21 Dec 2012, 01:58 PM
We're currently using 2012.3.1129.45
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Ivan Ivanov
Telerik team
answered on 21 Dec 2012, 02:49 PM
Hi,

We will need some more time to locate the source of this issue. I will keep you notified of any relevant updates.

All the best,
Ivan Ivanov
the Telerik team

Explore the entire Telerik portfolio by downloading Telerik DevCraft Ultimate.

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Steve Hopkins
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Answers by
Vlad
Telerik team
Steve Hopkins
Top achievements
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Ivan Ivanov
Telerik team
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