Clay,
As a first step towards optimization i turned on few options (as coded in gridperf sample app)
symbolGrid.UseListChangedEvent=true;
symbolGrid.ForceUpdateAfterListChangedEvent = true;
symbolGrid.OptimizeInsertRemoveCells=true;
I see following exception in my output window
System.Data.VersionNotFoundException: There is no Original data to access.
at System.Data.DataRow.GetOriginalRecordNo()
at System.Data.DataRow.GetRecordFromVersion(DataRowVersion version)
at System.Data.DataRow.get_Item(DataColumn column, DataRowVersion version)
at System.Data.DataRowView.GetColumnValue(DataColumn column)
at System.Data.DataColumnPropertyDescriptor.GetValue(Object component)
at Syncfusion.Windows.Forms.Grid.GridModelDataBinder.QueryCellInfo(GridQueryCellInfoEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridModelDataBinder.Syncfusion.Windows.Forms.Grid.IGridModelDataProvider.QueryCellInfo(GridQueryCellInfoEventArgs e)
at Syncfusion.Windows.Forms.Grid.GridModel.GetCellInfo(Int32 rowIndex, Int32 colIndex, GridStyleInfo style)
at Syncfusion.Windows.Forms.Grid.GridControlBase.GetViewStyleInfo(Int32 rowIndex, Int32 colIndex, Boolean forceQueryCellInfo)
at Syncfusion.Windows.Forms.Grid.GridControlBase.GetPaintStyleInfo(Int32 rowIndex, Int32 colIndex, Boolean forceQueryCellInfo)
at Syncfusion.Windows.Forms.Grid.GridPaint.InternalLoadCell(DrawStruct ds, Int32 rowIndex, Int32 colIndex)
at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip)
catched at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip) in :line 0
catched at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip) in :line 0
catched at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip) in :line 0
System.NullReferenceException: Object reference not set to an instance of an object.
at Syncfusion.Windows.Forms.Grid.GridPaint.InternalDrawBackground(DrawStruct ds, Int32 rowIndex, Int32 top, Int32 left, Int32 bottom, Int32 right)
at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip)
System.NullReferenceException: Object reference not set to an instance of an object.
at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip)
at Syncfusion.Windows.Forms.Grid.GridControlBase.OnDrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip)
at Syncfusion.Windows.Forms.Grid.GridPaint.DrawGrid(Graphics g, Boolean shouldClip, Rectangle rectClip)
at Syncfusion.Windows.Forms.Grid.GridControlBase.OnPaint(PaintEventArgs pe)
catched at Syncfusion.Windows.Forms.Grid.GridPaint.DrawClientRowCol(Int32 topRow, Int32 leftCol, Int32 bottomRow, Int32 rightCol, Graphics g, Rectangle rectClip) in :line 0
catched at Syncfusion.Windows.Forms.Grid.GridControlBase.OnPaint(PaintEventArgs pe) in :line 0
Regards
Yogesh S