Automation Crash

[Alex]

Using Windows Narrator (or our automated testing tool) our app crashes with the following stack trace:

at System.Collections.Generic.List`1.InsertRange(Int32 index, IEnumerable`1 collection)

   at System.Collections.Generic.List`1.AddRange(IEnumerable`1 collection)

   at Telerik.Windows.Controls.RadTabControlAutomationPeer.GetChildrenCore()

   at System.Windows.Automation.Peers.AutomationPeer.EnsureChildren()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateChildrenInternal(Int32 invalidateLimit)

   at System.Windows.Automation.Peers.ItemsControlAutomationPeer.UpdateChildren()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()

   at System.Windows.ContextLayoutManager.fireAutomationEvents()

This didnt happen with the Telerik trial dll's (version 2012.2.0725.40) but does happen since we received our licensed dll's (versions 2012.2.0912.40 and 2012.2.0929.40)

I would have raised this as a support ticket but my Telerik account isnt linked to our license at present. 

Thanks

[Stefan]

Hi Alex,

This is a known issue and it was introduced with versions 2012.2.0912.40, however it is already fixed. I am not sure what you mean with "version 2012.2.0929.40", because there is no internal build with such a version. There is an internal build on 24th September and after that there is one on 1st October. You can find the fix of this issue in both of those internal builds.

Please give one of them a try and write us back if it works for you.

Regards,
Stefan
the Telerik team

[Jeremy]

We think we may be seeing similar issues w/ the Silverlight controls, has this UIAutomation WPF fix made it into the SL controls?  

[Stefan]

Hi Jeremy,

The fix is made and tested for both platforms - Silverlight and WPF.

However if you find any similar issues please send us a sample project reproducing the issues.

Kind regards,
Stefan
the Telerik team

[mark]

I am experiencing this issue with Telerik Q2 2013 WPF controls.

The controls that I am using are TileList, AutoComplete, ComboBox, and GridView. When I turn on Narrator. I get the following error:



 at Telerik.Windows.Controls.ItemsControlExtensions.<GetContainers>d__0`1.MoveNext() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Common\ItemsControlExtensions.cs:line 45

   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()

   at Telerik.Windows.Automation.Peers.RadAutoCompleteBoxAutomationPeer.GetChildrenCore() in c:\TB\221\WPF_Scrum\Release_WPF\Sources\Development\Controls\Input\AutoCompleteBox\AutomationPeers\RadAutoCompleteBoxAutomationPeer.cs:line 173

   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.ValidateConnected(AutomationPeer connectedPeer)

   at MS.Internal.Automation.ElementProxy.StaticWrap(AutomationPeer peer, AutomationPeer referencePeer)

   at System.Windows.Automation.Peers.AutomationPeer.RaiseAutomationEvent(AutomationEvents eventId)

   at System.Windows.Automation.Peers.SelectorAutomationPeer.RaiseSelectionEvents(SelectionChangedEventArgs e)

   at System.Windows.Controls.Primitives.Selector.SelectionChanger.End()

   at System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection)

   at System.Windows.Controls.Primitives.Selector.OnSelectedIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)

   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)

   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)

   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)

   at System.Windows.DependencyObject.SetCurrentValueInternal(DependencyProperty dp, Object value)

   at System.Windows.Controls.TabControl.OnGeneratorStatusChanged(Object sender, EventArgs e)

   at System.EventHandler.Invoke(Object sender, EventArgs e)

   at System.Windows.Controls.ItemContainerGenerator.SetStatus(GeneratorStatus value)

   at System.Windows.Controls.ItemContainerGenerator.Generator.System.IDisposable.Dispose()

   at System.Windows.Controls.Panel.GenerateChildren()

   at System.Windows.Controls.Primitives.TabPanel.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Control.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV, Boolean& hasDesiredSizeUChanged)

   at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)

   at System.Windows.Controls.Grid.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Border.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Control.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.ContextLayoutManager.UpdateLayout()

   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)

   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()

   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)

   at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)

   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.DispatcherOperation.InvokeImpl()

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   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.LegacyInvokeImpl(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()

[Ventzi]

Hello Mark,

 I have answered your ticket and I'm pasting the answer also here: 

"We are not aware of such bug. We would kindly ask you to create and send us a sample project where we could reproduce this bug which would be of great help for us to find out why or in which case this issue occurs."

Regards,
Ventzi
Telerik

[Praveen]

can you please tell me what is the fix to such porblems?