1) edit a cell with clicking on it
2) press esc to cancel cell edit
3) press esc to cancel row edit
4) click or press F2 on the same cell to edit again and the following exception is thrown
Error Message: Object reference not set to an instance of an object.
StackTrace is as below:
konum Telerik.Windows.Controls.GridView.GridViewCell.CanCommitEdit()
konum Telerik.Windows.Controls.GridView.GridViewDataControl.CommitCellEdit(GridViewCell currentCell, Boolean isLeavingRow)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCurrentCellInfoChanging(GridViewCellInfo oldCell, GridViewCellInfo newCell)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.set_CurrentCellInfo(GridViewCellInfo value)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCurrentItemChanged()
konum Telerik.Windows.Controls.DataControl.CurrentItemChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
konum Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
konum System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
konum System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
konum System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
konum System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
konum Telerik.Windows.Controls.DataControl.set_CurrentItem(Object value)
konum Telerik.Windows.Controls.DataControl.Telerik.Windows.Data.Selection.ISelectorInternal.set_CurrentItem(Object value)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.SynchronizePublicCurrentItem()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleCurrentItemChanged()
konum Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.Items_CurrentChanged(Object sender, EventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCurrentChanged(EventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCollectionViewCurrentChanged(Object sender, EventArgs args)
konum Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
konum Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.OnCurrentChanged(EventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPositionCore(Int32 position)
konum Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPosition(Int32 position)
konum Telerik.Windows.Data.DataItemCollection.MoveCurrentToPosition(Int32 position)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.SyncCurrentWithSelected()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.TrySyncCurrentWithSelected()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.RaiseSelectionChangedAndSyncCurrentWithSelectedIfNeeded(ItemSelectionChange selectionChange)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.EndAllowedSelection(ItemSelectionChange selectionChange)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.EndPendingSelection(ItemSelectionChange pendingSelection)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.EndSelection()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleItemsRemoved(IEnumerable removedItems)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleItemsChanged(NotifyCollectionChangedEventArgs itemsChangedArguments)
konum Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.Items_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
konum System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCollectionViewCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
konum Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
konum Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.ProcessSynchronousCollectionChangedWithAdjustedArgs(NotifyCollectionChangedEventArgs originalArguments, Int32 adjustedOldIndex, Int32 adjustedNewIndex)
konum Telerik.Windows.Data.QueryableCollectionView.ProcessSynchronousCollectionChanged(NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.OnSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
konum System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
konum System.Windows.Data.PagedCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
konum System.Windows.Data.PagedCollectionView.CommitEdit()
konum System.Windows.Data.PagedCollectionView.EditItem(Object item)
konum Telerik.Windows.Data.DataItemCollection.EditItem(Object item)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.set_RowInEditMode(GridViewRow value)
konum Telerik.Windows.Controls.GridView.GridViewRow.IsInEditModeChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
konum Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
konum System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
konum System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
konum System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
konum System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
konum Telerik.Windows.Controls.GridView.GridViewRow.set_IsInEditMode(Boolean value)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCellEditModeChanged(GridViewCell cell, Boolean newIsInEditMode)
konum Telerik.Windows.Controls.GridView.GridViewCell.IsInEditModeChanged(DependencyObject target, DependencyPropertyChangedEventArgs e)
konum System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
konum System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
konum System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
konum System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
konum Telerik.Windows.Controls.GridView.GridViewCell.set_IsInEditMode(Boolean value)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.SwitchCellToEditMode(GridViewCell cell)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.BeginEdit(GridViewCell gridViewCell, RoutedEventArgs editEventArgs)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCellMouseDown(GridViewCell cell, MouseButtonEventArgs args)
konum Telerik.Windows.Controls.GridView.GridViewCell.OnMouseLeftButtonDown(MouseButtonEventArgs e)
konum System.Windows.Controls.Control.OnMouseLeftButtonDown(Control ctrl, EventArgs e)
konum MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName, UInt32 flags)
2) press esc to cancel cell edit
3) press esc to cancel row edit
4) click or press F2 on the same cell to edit again and the following exception is thrown
Error Message: Object reference not set to an instance of an object.
StackTrace is as below:
konum Telerik.Windows.Controls.GridView.GridViewCell.CanCommitEdit()
konum Telerik.Windows.Controls.GridView.GridViewDataControl.CommitCellEdit(GridViewCell currentCell, Boolean isLeavingRow)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCurrentCellInfoChanging(GridViewCellInfo oldCell, GridViewCellInfo newCell)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.set_CurrentCellInfo(GridViewCellInfo value)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCurrentItemChanged()
konum Telerik.Windows.Controls.DataControl.CurrentItemChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
konum Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
konum System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
konum System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
konum System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
konum System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
konum Telerik.Windows.Controls.DataControl.set_CurrentItem(Object value)
konum Telerik.Windows.Controls.DataControl.Telerik.Windows.Data.Selection.ISelectorInternal.set_CurrentItem(Object value)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.SynchronizePublicCurrentItem()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleCurrentItemChanged()
konum Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.Items_CurrentChanged(Object sender, EventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCurrentChanged(EventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCollectionViewCurrentChanged(Object sender, EventArgs args)
konum Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
konum Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.OnCurrentChanged(EventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPositionCore(Int32 position)
konum Telerik.Windows.Data.QueryableCollectionView.MoveCurrentToPosition(Int32 position)
konum Telerik.Windows.Data.DataItemCollection.MoveCurrentToPosition(Int32 position)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.SyncCurrentWithSelected()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.TrySyncCurrentWithSelected()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.RaiseSelectionChangedAndSyncCurrentWithSelectedIfNeeded(ItemSelectionChange selectionChange)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.EndAllowedSelection(ItemSelectionChange selectionChange)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.EndPendingSelection(ItemSelectionChange pendingSelection)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.EndSelection()
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleItemsRemoved(IEnumerable removedItems)
konum Telerik.Windows.Data.Selection.ItemSelectionHandler.HandleItemsChanged(NotifyCollectionChangedEventArgs itemsChangedArguments)
konum Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.Items_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
konum System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
konum Telerik.Windows.Data.DataItemCollection.OnCollectionViewCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
konum Telerik.Windows.Data.Listener`2.ReceiveWeakEvent(Object sender, TArgs args)
konum Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.ProcessSynchronousCollectionChangedWithAdjustedArgs(NotifyCollectionChangedEventArgs originalArguments, Int32 adjustedOldIndex, Int32 adjustedNewIndex)
konum Telerik.Windows.Data.QueryableCollectionView.ProcessSynchronousCollectionChanged(NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.OnSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.QueryableCollectionView.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
konum Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
konum System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
konum System.Windows.Data.PagedCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
konum System.Windows.Data.PagedCollectionView.CommitEdit()
konum System.Windows.Data.PagedCollectionView.EditItem(Object item)
konum Telerik.Windows.Data.DataItemCollection.EditItem(Object item)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.set_RowInEditMode(GridViewRow value)
konum Telerik.Windows.Controls.GridView.GridViewRow.IsInEditModeChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs e)
konum Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
konum System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
konum System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
konum System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
konum System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
konum Telerik.Windows.Controls.GridView.GridViewRow.set_IsInEditMode(Boolean value)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCellEditModeChanged(GridViewCell cell, Boolean newIsInEditMode)
konum Telerik.Windows.Controls.GridView.GridViewCell.IsInEditModeChanged(DependencyObject target, DependencyPropertyChangedEventArgs e)
konum System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
konum System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
konum System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet, Boolean isBindingInStyleSetter)
konum System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
konum Telerik.Windows.Controls.GridView.GridViewCell.set_IsInEditMode(Boolean value)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.SwitchCellToEditMode(GridViewCell cell)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.BeginEdit(GridViewCell gridViewCell, RoutedEventArgs editEventArgs)
konum Telerik.Windows.Controls.GridView.GridViewDataControl.OnCellMouseDown(GridViewCell cell, MouseButtonEventArgs args)
konum Telerik.Windows.Controls.GridView.GridViewCell.OnMouseLeftButtonDown(MouseButtonEventArgs e)
konum System.Windows.Controls.Control.OnMouseLeftButtonDown(Control ctrl, EventArgs e)
konum MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName, UInt32 flags)