how to always show label in chartjs without mouseover?

Question

I am using latest version of Chart Js. I need to always show label in chart (without mouse over). Is it possible? If yes, then please help me with working example code.

Thank you.

My Current Chartjs code:

var ctx = $("#myChart");
var label = ctx.data('clabel').split(',');
var val = ctx.data('cval').split(',');


var myChart = new Chart(ctx, {
    type: 'line',
    data: {
        labels: label,
        datasets: [{
            label: 'Daily Capital',
            data: val,
            backgroundColor: [
                'rgba(0, 153, 34, 0.5)',
            ],
            borderColor: [
                'rgba(0, 153, 34, 1);',
            ],
            borderWidth: 2
        }]
    },
    options: {
        responsive: true,
        maintainAspectRatio: false,
        legend: {
            display: false,
        },
        animation: {
            duration: 0, // general animation time
        },
        hover: {
            animationDuration: 0, 
        },
        responsiveAnimationDuration: 0, // animation duration after a resize
        elements: {
            line: {
                tension: 0, // disables bezier curves
            },
        },
        tooltips: {
            callbacks: {
                label: function(tooltipItem, data){
                    return '£' + tooltipItem.yLabel;
                },
                title: function(tooltipItem, data){
                    return '';
                },
            }
        },
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero: true
                }
            }]
        }
    }       
});

I hope someone can help. Thank you in advance

Solution

This could be solved by adding the options onAnimationComplete and tooltipevents.

onAnitmationComplete functions calls the showToolTip method to show the tooltips like a hover event does.

Usually tooltipevents are define to show tooltips but here an empty array need to be passed. Check the below fiddle example for line chart.

var options = {
  tooltipTemplate: "<%= value %>",

  showTooltips: true,

  onAnimationComplete: function() {
    this.showTooltip(this.datasets[0].points, true);
  },
  tooltipEvents: []
}

Note : This approach does not support multi data-sets in line and bar charts, but does support multi data-sets in pie charts

var data_line = {
  labels: ["January", "February", "March", "April", "May", "June", "July"],
  datasets: [{
    label: "My First dataset",
    fillColor: "rgba(220,220,220,0.2)",
    strokeColor: "rgba(220,220,220,1)",
    pointColor: "rgba(220,220,220,1)",
    pointStrokeColor: "#fff",
    pointHighlightFill: "#fff",
    pointHighlightStroke: "rgba(220,220,220,1)",
    data: [65, 59, 80, 81, 56, 55, 40]
  }]
};


var options = {
  tooltipTemplate: "<%= value %>",

  showTooltips: true,

  onAnimationComplete: function() {
    this.showTooltip(this.datasets[0].points, true);
  },
  tooltipEvents: []
}

var context = $('#chart3').get(0).getContext('2d');
var chart = new Chart(context).Line(data_line, options);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/1.0.2/Chart.min.js"></script>
<div id="chartContainer">
  <canvas id="chart3" width="500" height="500"></canvas>
</div>