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Filtering

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<script src="../../codebase/dhtmlxchart.js" type="text/javascript"></script>
<link rel="STYLESHEET" type="text/css" href="../../codebase/dhtmlxchart.css">
<script>
var data = [{
    sales: "3.0",
    year: "2000"
}, {
    sales: "3.8",
    year: "2001"
}, {
    sales: "3.4",
    year: "2002"
}, {
    sales: "4.1",
    year: "2003"
}, {
    sales: "4.3",
    year: "2004"
}, {
    sales: "9.9",
    year: "2005"
}, {
    sales: "7.4",
    year: "2006"
}, {
    sales: "9.0",
    year: "2007"
}, {
    sales: "7.3",
    year: "2008"
}, {
    sales: "4.8",
    year: "2009"
}];
window.onload = function() {
    barChart = new dhtmlXChart({
        view: "bar",
        container: "chart1",
        value: "#sales#",
        label: "#sales#",
        color: "#b3e025",
        gradient: true,
        border: false,
        width: 50,
        tooltip: {
            template: "#sales#";
        },
        xAxis: {
            title: "Sales per year",
            template: "#year#";
        },
        padding: {
            left: 15;
        }
    });
    barChart.parse(data, "json");
}
function filter_year() {
    barChart.filter(function(obj) {
        return obj.year > 2005;
    });
}
function filter_sales() {
    barChart.filter(function(obj) {
        return obj.sales < 8;
    });
}
</script> <table> <tr> <td><div id="chart1" style="width:950px;height:300px;border:1px solid #A4BED4;"></div></td> </tr> </table> <input type="button" value="show all" onclick="barChart.filter();"> <input type="button" value="show year > 2005" onclick="filter_year()"> <input type="button" value="show sales < 8" onclick="filter_sales()">