or
<!DOCType html><html><head> <title></title> <script src="js/jquery-1.7.1.js"></script> <script src="js/kendo.all.js"></script> <link href="styles/kendo.common.css" rel="stylesheet" /> <link href="styles/kendo.default.css" rel="stylesheet" /></head><body><div id="chart" style="height:300px; width:500px"></div><input id="addData" class="k-button" type="button" value="Add Data" /><script> $(function() { var data = [ { employee: "Joe Smith", sales: 2000 }, { employee: "Jane Smith", sales: 2250 }, { employee: "Will Roberts", sales: 1550 }]; $("#addData").click(function() { data = data.concat({ employee: "Will Roberts", sales: Math.floor(Math.random()*10001) }); //var chart = $("#chart").data("kendoChart"); //chart.options.data = data; //alert(data) //chart.refresh(); }); $("#chart").kendoChart({ title: { text: "Employee Sales" }, dataSource: new kendo.data.DataSource({ data: data }), series: [{ type: "line", field: "sales", name: "Sales in Units" }], categoryAxis: { field: "employee" }, tooltip: { visible: true, format: "{0}%" } }); })</script></body></html>