grouping with aggregates

by valchev

HTML

<script src="http://cdn.kendostatic.com/2012.1.515/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.default.min.css">
<div data-role="view" id="chart">
    <div id="colchart"></div>
</div>

JavaScript

var chartDataSource = new kendo.data.DataSource({
    transport: {
        read: {
            //using jsfiddle echo service to simulate JSON endpoint
            url: "/echo/json/",
            dataType: "json",
            type: "POST",
            data: {
                // /echo/json/ echoes the JSON which you pass as an argument
                json: JSON.stringify([
                    {
                        "Year": 12,
                        "Quarter": 1,
                        "TurnoverRatePercent": 3.0869069543102694,
                        "TurnoverRateChangeFromPrevQuarter": 152.6905109977389,
                        "TerminatedEmployees": 352,
                        "ActiveEmployees": 11403
                    },
                    {
                        "Year": 12,
                        "Quarter": 2,
                        "TurnoverRatePercent": 2.1319418561311965,
                        "TurnoverRateChangeFromPrevQuarter": 69.06401416325009,
                        "TerminatedEmployees": 286,
                        "ActiveEmployees": 13415
                    },
                    {
                        "Year": 12,
                        "Quarter": 3,
                        "TurnoverRatePercent": 2.7377727078283187,
                        "TurnoverRateChangeFromPrevQuarter": 128.41685620810105,
                        "TerminatedEmployees": 384,
                        "ActiveEmployees": 14026
                    },
                    {
                        "Year": 12,
                        "Quarter": 4,
                        "TurnoverRatePercent": 1.9254082578620837,
                        "TurnoverRateChangeFromPrevQuarter": 70.32754225201455,
                        "TerminatedEmployees": 270,
                        "ActiveEmployees": 14023
                    }
                ])
            }
        }
    },
    change: function (e) {
        debugger;
        var colchart = $("#colchart").data("kendoChart");
 ...