gcSpreadSheet1.Sheets[0].ShowGridLine = true;
gcSpreadSheet1.Sheets[0].GridLineColor = Color.FromRgb(150, 25, 199);
gcSpreadSheet1.Invalidate();
GcSpreadSheet1.Sheets(0).ShowGridLine = True
GcSpreadSheet1.Sheets(0).GridLineColor = Color.FromRgb(150, 25, 199)
GcSpreadSheet1.Invalidate()