FarPoint.Web.Spread.Model.ISheetStyleModel iss;
iss = (FarPoint.Web.Spread.Model.ISheetStyleModel)FpSpread1.ActiveSheetView.StyleModel;
iss.AltRowCount = 2;
Dim si As New FarPoint.Web.Spread.StyleInfo;
si.BackColor = Color.Yellow;
iss.SetDirectAltRowInfo(1, si);
iss.SetDirectInfo(1, 1, si)
FarPoint.Web.Spread.StyleInfo ret = iss.GetDirectInfo(1, 1, null);
string msg = "The background color of the style is " + si.BackColor.ToString();
Response.Write("<script language='javascript'>alert('" + msg + "')</script>");