Exception

[Leticia]

Hi folks.

My client had an exception, and I have no idea how to reproduce it.

Do you have any idea what could cause it?

I'm using telerik for wpf version 2015.2.728.40.

Thanks a lot!

Exception:
System.InvalidOperationException: Coleção foi modificada; talvez a operação de enumeração não seja executada.
   em System.Collections.Hashtable.HashtableEnumerator.MoveNext()
   em Telerik.Windows.Controls.GridView.PropertyMap.Initialize()
   em Telerik.Windows.Controls.GridView.PropertyMap.SetReference(Object key, Object value)
   em Telerik.Windows.Controls.GridView.GridViewPropertyUpdater.GetPropertyUpdateMap(DependencyObject d)
   em Telerik.Windows.Controls.GridView.GridViewPropertyUpdater.UpdateProperty(DependencyObject d, DependencyProperty p)
   em Telerik.Windows.Controls.GridView.GridViewRowItem.OnApplyTemplate()
   em Telerik.Windows.Controls.GridView.GridViewRow.OnApplyTemplate()
   em System.Windows.FrameworkElement.ApplyTemplate()
   em System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   em System.Windows.UIElement.Measure(Size availableSize)
   em Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.NestedLayoutStrategy.MeasureChild(UIElement child, Size layoutSlotSize, Int32 i)
   em Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.NestedLayoutStrategy.MeasureOverride(Size constraint)
   em Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.MeasureOverride(Size availableSize)
   em System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   em System.Windows.UIElement.Measure(Size availableSize)
   em System.Windows.ContextLayoutManager.UpdateLayout()
   em System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   em System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   em System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   em System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   em System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   em System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   em MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

[Dilyan Traykov]

Hello Leticia,

Thank you for reporting this exception. I can confirm that it is a bug on our side when using multiple UI threads. I have logged it in our system and rewarded you with some Telerik points.

You can follow the status of the issue in our Feedback Portal.

Regards,
Dilyan Traykov
Telerik