Rendering HighCharts to class instead of id?

Question

I have the following which works fine:

$(document).ready(function() {

    get_data_for_chart();

    function get_data_for_chart() {
        $.ajax({
            url: 'get_data.aspx?rand=' + Math.random(),
            type: 'GET',
            dataType: 'json',
            error: function(xhr, status, error) {
                console.log(status);
                console.log(xhr.responseText);
            },
            success: function(results) { 
                var chart1;

                chart1 = new Highcharts.Chart( {
                    chart: {
                        renderTo: 'portlet_content_18',
                        defaultSeriesType: 'column'
                    }
                });

            }
        });
    }
});

Where the HTML looks something like this:

<div id="portlet_content_18">

The user can dynamically select which portlet s/he wants on screen. S/He can also select to have the same portlet on the screen more than once for comparison reasons.

So if the HTML ends up becoming:

<div id="portlet_content_18">
<div id="portlet_content_18">

Only the first div gets populated with the chart, and the second one remains blank. How can I get around this issue?

Answer 1

Yes you can. See their example here: http://jsfiddle.net/gh/get/jquery/1.7.1/highslide-software/highcharts.com/tree/master/samples/highcharts/chart/renderto-jquery/

basically you assign an jQuery element to a variable:

renderTo: $('.myclass')[0]