activeSheet.bind(GC.Spread.Sheets.Events.CellChanged, function (sender, args) {
    if (args.propertyName === "value") {
        alert(activeSheet.getValue(args.row, args.col));
    }
});
activeSheet.suspendEvent();
activeSheet.setValue(0, 0, "111");
activeSheet.resumeEvent();
activeSheet.setValue(1, 1, "222");