Hi,

   I am using infragistics v9.1.  While pinning the rows in wingrid i am getting Argument out of range exception. Its not throwing exception on each and every pinning, but able to reproduce frequently. Please see the below stack trace. 

Type : System.ArgumentOutOfRangeException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
Message : Specified argument was out of the range of valid values.
Parameter name: index
Source : Infragistics2.Shared.v9.1
Help link :
ActualValue :
ParamName : index
Data : System.Collections.ListDictionaryInternal
TargetSite : Void Insert(Int32, System.Object)
Stack Trace :    at Infragistics.Shared.SparseArray.Insert(Int32 index, Object item)
   at Infragistics.Win.UltraWinGrid.RowsCollection.Move(UltraGridRow row, Int32 newIndex, Boolean forceDirtyPrimaryMetrics)
   at Infragistics.Win.UltraWinGrid.RowsCollection.MoveFixedRowsToProperLocation()
   at Infragistics.Win.UltraWinGrid.FixedRowsCollection.VerifyFixedRows()
   at Infragistics.Win.UltraWinGrid.FixedRowsCollection.get_Count()
   at Infragistics.Win.UltraWinGrid.FixedRowsCollection.get_HasFixedResolvedRows()
   at Infragistics.Win.UltraWinGrid.RowsCollection.get_HasFixedDataRowsVisibleOnTop()
   at Infragistics.Win.UltraWinGrid.RowsCollection.CalcSpecialAndFixedRowsHelper(List`1& outSpecialRows, List`1& outFixedRows, Boolean top, UltraGridRow[] rowsToRecycle)
   at Infragistics.Win.UltraWinGrid.RowsCollection.EnsureSpecialAndFixedRowsCacheCalculated()
   at Infragistics.Win.UltraWinGrid.RowsCollection.GetSpecialRows(Boolean top)
   at Infragistics.Win.UltraWinGrid.RowsCollection.GetSpecialRowAtIndex(Int32 index, Boolean top)
   at Infragistics.Win.UltraWinGrid.RowsCollection.GetRowAtVisibleIndex(Int32 visibleIndex, Boolean includeSpecialRows)
   at Infragistics.Win.UltraWinGrid.RowsCollection.GetFirstVisibleRow()
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.get_FirstRow()
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.GetMaxScrollPosition(Boolean scrollToFill)
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.EnsureScrollRegionFilled(Boolean calledFromRegenerateVisibleRows)
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.RegenerateVisibleRows(Boolean resetScrollInfo)
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.WillScrollbarBeShown(ScrollbarVisibility assumeColScrollbarsVisible)
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.PositionScrollbar(Boolean resetScrollInfo)
   at Infragistics.Win.UltraWinGrid.ScrollRegionBase.SetOriginAndExtent(Int32 origin, Int32 extent)
   at Infragistics.Win.UltraWinGrid.RowScrollRegion.SetOriginAndExtent(Int32 origin, Int32 extent)
   at Infragistics.Win.UltraWinGrid.DataAreaUIElement.ResizeRowScrollRegions()
   at Infragistics.Win.UltraWinGrid.DataAreaUIElement.PositionChildElements()
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UltraWinGrid.DataAreaUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UltraWinGrid.DataAreaUIElement.set_Rect(Rectangle value)
   at Infragistics.Win.UltraWinGrid.UltraGridUIElement.PositionChildElements()
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UltraWinGrid.UltraGridUIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UIElement.VerifyChildElements(Boolean recursive)
   at Infragistics.Win.ControlUIElementBase.VerifyIfElementsChanged(Boolean verify, Boolean syncMouseEntered)
   at Infragistics.Win.ControlUIElementBase.get_CurrentCursor()
   at Infragistics.Win.UltraControlBase.get_Cursor()
   at System.Windows.Forms.Control.WmSetCursor(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Any solution to fix this issue....

Regards,

  Micky