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>
<script src="https://cdn.grapecity.com/wijmo/5.latest/controls/wijmo.chart.analytics.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: 'sales', name: 'Sales' },
            { binding: 'downloads', name: 'Downloads'}
        ],
        axisY: {
            format: 'n0,',
            title: 'Sales',
            axisLine: true,
            itemFormatter: function(engine, label) {
            	engine.textFill = 'darkred';
                label.cls = null;
                return label;
            }
        }
    });
	
    let axisY2 = new wijmo.chart.Axis();
    axisY2.position = wijmo.chart.Position.Right;
    axisY2.title = 'Downloads';
    axisY2.format = 'n0,';
    axisY2.min = 0;
    axisY2.axisLine = true;
    axisY2.itemFormatter = function(engine, label) {
    	engine.textFill = 'darkblue';
        label.cls = null;
        return label;
    }
    getSeries('downloads').axisY = axisY2;
   	
    
    var salesTLine = new wijmo.chart.analytics.TrendLine({
    	binding: 'sales',
        style: { stroke: 'darkred', strokeWidth: 3 }
    });
    
    var dlTLine = new wijmo.chart.analytics.TrendLine({
    	binding: 'downloads',
        style: { stroke: 'darkblue', strokeWidth: 3 }
    });
    
    chart1.series.push(salesTLine, dlTLine);
    
    // 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),
                sales: Math.round(Math.random() * 30000 * factor)
            });
        }
        return data;
    }
    
    function getSeries(binding) {
        let s = chart1.series;
        //
        for (let i = 0; i < s.length; i++) {
            if (s[i].binding == binding) {
                return s[i];
   ...