An attempt was made to change the selection while a selection-change process

[Martin]

#51180 |

Dear Xceed Team!

In our application we often get following exception out of the xceed datagrid:

“An attempt was made to change the selection while a selection-change process is already in progress.”

With the following Call Stack:

System.InvalidOperationException:
at Xceed.Wpf.DataGrid.SelectionManager.Begin (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.SelectionManager.UpdateSelectionAfterSourceCollectionChanged (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.DataGridContext.UpdateSelectionAfterSourceCollectionChanged (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.DataGridContext.OnReceiveWeakEvent (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at System.Windows.WeakEventManager+ListenerList.DeliverEvent (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.WeakEventManager+ListenerList.DeliverEvent (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.WeakEventManager.DeliverEvent (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at Xceed.Wpf.DataGrid.DeferredOperationManager.Process (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.DataGridCollectionViewBase+DeferRefreshHelper.ProcessDispose (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.DataGridCollectionViewBase+DeferRefreshHelper.System.IDisposable.Dispose (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at System.Windows.Controls.ItemCollection+DeferHelper.Dispose (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at Xceed.Wpf.DataGrid.Row.EndEdit (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.DataGridContext.SetCurrent (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.SelectionManager.UpdateCurrentToSelection (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.SelectionManager.End (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
at Xceed.Wpf.DataGrid.DataGridControl.OnSelectedItemChanged (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
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 Xceed.Wpf.DataGrid.DataGridControl.OnPropertyChanged (Xceed.Wpf.DataGrid.v6.7, Version=6.7.19073.21200, Culture=neutral, PublicKeyToken=ba83ff368b7563c6)
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.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.ComponentModel.PropertyChangedEventManager.OnPropertyChanged (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.ComponentModel.PropertyChangedEventHandler.Invoke (System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089)
at Nevaris.UI.Infrastructure.NevarisItemsViewModel`4.set_CurrentItem (Nevaris.UI.Infrastructure, Version=20.1.0.0, Culture=neutral, PublicKeyToken=3b2ddf1840134659)
at Nevaris.Build.Modules.Planen.GaebLv.ListView.GaebLvListView.InitListViewColumns (Nevaris.Build.Modules.Planen, Version=20.1.0.0, Culture=neutral, PublicKeyToken=3b2ddf1840134659)
at Nevaris.Build.Modules.Planen.GaebLv.ListView.GaebLvListView.NevarisUserControl_Loaded (Nevaris.Build.Modules.Planen, Version=20.1.0.0, Culture=neutral, PublicKeyToken=3b2ddf1840134659)
at System.Windows.EventRoute.InvokeHandlersImpl (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.UIElement.RaiseEventImpl (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.BroadcastEventHelper.BroadcastEvent (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent (PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at MS.Internal.LoadedOrUnloadedOperation.DoWork (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Media.MediaContext.RenderMessageHandlerCore (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Media.MediaContext.RenderMessageHandler (PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen (WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35)

As this exception is sporadically at our customers we do not have the possibility to create an example for reproducing the problem. Is there an opportunity to access the “SelectionManager” for catching this exception? Or you may have other suggestions for handling this exception so that out application won’t crash at the customer because of setting a current item in a data grid?

Thanks in advance.

[Author]

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