$(function () {
            var workbook = new GC.Spread.Sheets.Workbook($("#ss")[0]);
            var activeSheet = workbook.getActiveSheet();
            activeSheet.setRowCount(7);
            activeSheet.setValue(0, 0, "North");
            activeSheet.setValue(1, 0, "South");
            activeSheet.setValue(2, 0, "East");
            activeSheet.setValue(3, 0, "South");
            activeSheet.setValue(4, 0, "North");
            activeSheet.setValue(5, 0, "North");
            activeSheet.setValue(6, 0, "West");
            activeSheet.setColumnWidth(0, 80);
            activeSheet.rowFilter(new GC.Spread.Sheets.Filter.HideRowFilter(new GC.Spread.Sheets.Range(0, 0, 7, 1)));
            $("#button1").click(function(){
                //Filter Column1 by "North".
                var rowFilter = $("#ss").data("workbook").getActiveSheet().rowFilter();
                var condition = new GC.Spread.Sheets.ConditionalFormatting.Condition(GC.Spread.Sheets.ConditionalFormatting.ConditionType.TextCondition, {
                    compareType: GC.Spread.Sheets.ConditionalFormatting.TextCompareType.EqualsTo,
                    expected: "North"
                });
                rowFilter.addFilterItem(0, condition);
                rowFilter.filter(0);
            });
            $("#button2").click(function(){
                // Remove filtering for Column1
                var rowFilter = $("#ss").data("workbook").getActiveSheet().rowFilter();
                if(rowFilter){
                    rowFilter.removeFilterItems(0);
                    rowFilter.filter();
                }
            });

        });
//Add button controls to page
<input type="button" id="button1" value="button1"/>
<input type="button" id="button2" value="button2"/>