var style = new GC.Spread.Sheets.Style();
style.backColor = "red";
var ranges=[new GC.Spread.Sheets.Range(0,0,5,1)];
activeSheet.conditionalFormats.addCellValueRule(GC.Spread.Sheets.ConditionalFormatting.ComparisonOperators.Between, 2, 100, style, ranges);
activeSheet.setValue(0,0,1,3);
activeSheet.setValue(1,0,45,3); 