Hello,

I use xamGrid and MultipleColumnSorting but I got an exception when sort some colum on my XamGrid.  Some column works fine but some colum not. I use a custom sort on each Column 

My version is 16.2

Sample for one of my Column

<!--region Icon -->
                <ig:TemplateColumn Key="EquipmentType" HeaderText=" " MinimumWidth="5" Width="45" IsFilterable="False" IsReadOnly="True"
                                   ItemTemplate="{StaticResource EquipmentIconTemplate}"
                                   AllowToolTips="Always" 
                                   IsSortable="True"
                                    SortComparer="{StaticResource StringWithIndexComparer}" 
                                   ToolTipStyle="{StaticResource CustomTooltipStyle}" 
                                   ToolTipContentTemplate="{StaticResource IconTooltipTemplate}">
                </ig:TemplateColumn>
<!-- endregion Icon-->

Does it possible to override/replace MutliSortComparer to be able to have details on issue (breakpoint ?)

Thanks

Exception Stack trace

System.ArgumentException: Unable to sort because the IComparer.Compare() method returns inconsistent results. Either a value does not compare equal to itself, or one value repeatedly compared to another value yields different results. IComparer: 'Infragistics.MultiSortComparer`1[SET.SYD.Client.WorkItems.MainViews.Electrical.MainPanel.FunctionnalView.LNodeDataModel]'.
at System.Collections.Generic.IntrospectiveSortUtilities.ThrowOrIgnoreBadComparer(Object comparer)
at System.Array.SorterObjectArray.IntrospectiveSort(Int32 left, Int32 length)
at System.Array.Sort(Array keys, Array items, Int32 index, Int32 length, IComparer comparer)
at System.Collections.ArrayList.Sort(Int32 index, Int32 count, IComparer comparer)
at System.Windows.Data.ListCollectionView.PrepareLocalArray()
at System.Windows.Data.ListCollectionView.RefreshOverride()
at System.Windows.Data.CollectionView.RefreshInternal()
at System.Windows.Data.CollectionView.EndDefer()
at System.Windows.Data.CollectionView.DeferHelper.Dispose()
at Infragistics.DataManager`1.ResolveFilteredSortedPagedDataSource()
at Infragistics.DataManagerBase.InvalidateSortedFilterdDataSource()
at Infragistics.DataManager`1.ClearCachedDataSource(Boolean invalidateTotalRowCount)
at Infragistics.Controls.Grids.RowsManager.InvalidateSort()
at Infragistics.Controls.Grids.RowsManager.OnColumnLayoutPropertyChanged(ColumnLayout layout, String propertyName)
at Infragistics.Controls.Grids.ColumnLayout.OnPropertyChanged(String propertyName)
at System.ComponentModel.PropertyChangedEventHandler.Invoke(Object sender, PropertyChangedEventArgs e)
at Infragistics.DependencyObjectNotifier.OnPropertyChanged(String propertyName)
at Infragistics.Controls.Grids.Column.SetSortedColumnState(SortDirection state, Boolean multipleColumnSort)
at Infragistics.Controls.Grids.ColumnCommandBase.Execute(Object parameter)
at Infragistics.Controls.CommandSource.Execute(ICommandTarget target, Boolean canExecute)
at Infragistics.Controls.CommandSource.LookForCommandTarget(FrameworkElement parent, Boolean execute, ICommand command)
at Infragistics.Controls.CommandSource.InvokeCommand(Boolean execute)
at Infragistics.Controls.CommandSource.EventFired(Object sender, EventArgs e)
at System.EventHandler.Invoke(Object sender, EventArgs e)
at Infragistics.Controls.Grids.Primitives.SimpleClickableContainer.OnSimpleClick()
at Infragistics.Controls.Grids.Primitives.SimpleClickableContainer.OnMouseLeftButtonUp(MouseButtonEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at TSF.Workbench.Generic.EntryPoint.Main() in