Demo - Data Labels

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet" href="https://cdn.grapecity.com/wijmo/5.latest/styles/wijmo.min.css">
<script src="https://cdn.grapecity.com/wijmo/5.latest/controls/wijmo.min.js"></script>
<script src="https://cdn.grapecity.com/wijmo/5.latest/controls/wijmo.input.min.js"></script>
<script src="https://cdn.grapecity.com/wijmo/5.latest/controls/wijmo.chart.min.js"></script>
<div id="chart1">
</div>

CSS

body {
    margin: 40px;
}

.wj-flexchart {
    width: 100%;
}

JavaScript

onload = function() {

    var chart1 = new wijmo.chart.FlexChart('#chart1', {
        itemsSource: getData(1),
        bindingX: 'country',
        chartType: 'Column',
        series: [{
            binding: 'downloads',
            name: 'Downloads'
        }],
        tooltip: {
			popup: function(s, e) {
            	e.cancel = true;
            }
        }
    });

    // create some random data
    function getData(factor) {
        var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','),
            data = [];
        for (var i = 0; i < countries.length; i++) {
            data.push({
                country: countries[i],
                downloads: Math.round(Math.random() * 20000 * factor) * Math.pow(-1, i)
            });
        }
        return data;
    }
}