Hello.

When I remove an item from grid I get the following exception. This is after I upgraded from Infragistics 14.2 to 15.2. I would not expect any generic exception such as a NullReferenceException to be thrown from Infragistics code, so I consider this a bug. I would try to find a workaround, but since I don't have the .pdb's or source of the Infragistics .dll's, this is a bit tricky. I've tried decompiling the related assemblies but it's not apparent where the NullReferenceException occurs.

Could you fix this bug or provide me with a workaround? Thanks

Here is the related stacktrace. Let me know if you require more information.

at Infragistics.Windows.DataPresenter.RecordManager.RemoveRecordHelper(Int32 index)
at Infragistics.Windows.DataPresenter.RecordManager.OnSourceCollectionAddOrRemove(NotifyCollectionChangedEventArgs e)
at Infragistics.Windows.DataPresenter.RecordManager.OnSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at Infragistics.Windows.DataPresenter.RecordManager.ProcessChangeNotification(Object sender, Object eventArgs)
at Infragistics.Windows.DataPresenter.RecordManager.OnChangeNotification(Object sender, Object eventArgs, Boolean isReset, Boolean isCellChangeNotification)
at Infragistics.Windows.DataPresenter.RecordManager.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
at System.Windows.WeakEventManager.ListenerList.DeliverEvent(Listener& listener, Object sender, EventArgs args, Type managerType)
at System.Windows.WeakEventManager.ListenerList`1.DeliverEvent(Object sender, EventArgs e, Type managerType)
at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
at Infragistics.Windows.CollectionViewWrapper.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at Infragistics.Windows.CollectionViewWrapper.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
at System.Windows.WeakEventManager.ListenerList.DeliverEvent(Listener& listener, Object sender, EventArgs args, Type managerType)
at System.Windows.WeakEventManager.ListenerList`1.DeliverEvent(Object sender, EventArgs e, Type managerType)
at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
at Infragistics.Windows.CollectionViewExtendedProxyBase.OnRootInterfaceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
at System.Windows.Data.ListCollectionView.ProcessCollectionChangedWithAdjustedIndex(NotifyCollectionChangedEventArgs args, Int32 adjustedOldIndex, Int32 adjustedNewIndex)
at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.RemoveItem(Int32 index)
at System.Collections.ObjectModel.Collection`1.Remove(T item)
at OF.App.Common.EnumerableExtensions.RemoveWhere[T](ICollection`1 source, Func`2 pred) in D:\sandboxes\ALS\Source\OF.Oaf\OF.App\OF.App.Common\Util\EnumerableExtensions.cs:line 166

Regards,
Remy.