This property is available at run time only.
Dim r As FarPoint.Win.Spread.RowHeader r = FpSpread1.ActiveSheet.RowHeader r.ColumnCount = 4 r.Cells(0, 0, 3, 3).BackColor = Color.Teal
FarPoint.Win.Spread.RowHeader r; r = fpSpread1.ActiveSheet.RowHeader; r.ColumnCount = 4; r.Cells[0, 0, 3, 3].BackColor = Color.Teal;