fpSpread1.Sheets[0].RowHeader.ColumnCount = 3;
fpSpread1.Sheets[0].ShowRowSelector = true;
fpSpread1.Sheets[0].RowHeaderSelectorIndex = 1;
FpSpread1.Sheets(0).RowHeader.ColumnCount = 3
FpSpread1.Sheets(0).ShowRowSelector = True
FpSpread1.Sheets(0).RowHeaderSelectorIndex = 1