FarPoint.Win.Spread.NamedStyleCollection nsc = new FarPoint.Win.Spread.NamedStyleCollection();
FarPoint.Win.Spread.NamedStyle ns1 = new FarPoint.Win.Spread.NamedStyle("StyleHeaders", "HeaderDefault");
FarPoint.Win.Spread.NamedStyle ns2 = new FarPoint.Win.Spread.NamedStyle("StyleData", "DataAreaDefault");
bool b;
ns1.BackColor = Color.LightBlue;
ns2.BackColor = Color.Gray;
nsc.AddRange(new Object[] {ns1, ns2});
fpSpread1.NamedStyles = nsc;
fpSpread1.ActiveSheet.ColumnHeader.DefaultStyle = nsc[0];
fpSpread1.ActiveSheet.DefaultStyle = nsc[1];
b = nsc.Contains(ns2);
label1.Text = "The collection contains ns2 = " + b.ToString();