Hi Team,
We are facing the below exception when scheduling an appointment. we are using "2017.2.503.45" version of Telerik.Windows.Controls and VS 2017.
System.InvalidOperationException:
at System.Windows.Data.CollectionView.DeferRefresh (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at Telerik.Windows.Controls.ScheduleView.ScheduleViewDataConnection.SetGroupingAndFiltering (Telerik.Windows.Controls.ScheduleView, Version=2017.2.503.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7)
at Telerik.Windows.Controls.ScheduleViewBase.RegenerateGroupHeaders (Telerik.Windows.Controls.ScheduleView, Version=2017.2.503.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7)
at Telerik.Windows.Controls.ScheduleViewBase.OnResourceTypesSourcePropertyChanged (Telerik.Windows.Controls.ScheduleView, Version=2017.2.503.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7)
at System.Windows.DependencyObject.OnPropertyChanged (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.FrameworkElement.OnPropertyChanged (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.DependencyObject.NotifyPropertyChange (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.DependencyObject.UpdateEffectiveValue (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.DependencyObject.InvalidateProperty (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Data.BindingExpressionBase.Invalidate (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Data.BindingExpression.TransferValue (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at MS.Internal.Data.PropertyPathWorker.UpdateSourceValueState (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at MS.Internal.Data.PropertyPathWorker.UpdateSourceValueState (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at MS.Internal.Data.ClrBindingWorker.OnSourcePropertyChanged (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.WeakEventManager+ListenerList`1.DeliverEvent (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.WeakEventManager.DeliverEventToList (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.ComponentModel.PropertyChangedEventManager.OnPropertyChanged (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at ViewModel.WorkerCompleted (SampleModules.Test, Version=2.132.18145.3, Culture=neutral, PublicKeyToken=null)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
Please suggest as to handle this issue.
Thanks,
Parameswari