Chartjs-How to display Tooltip without hovering pie chart with Chart.JS

by

2👍

✅

I’ve had a great time on google with this problem..

Basically the way other developers solve your problem was creating a plugin which makes all the tooltips show up after the render

I found a fiddle that fixes this problem..

The fiddle is not mine..

Credits goes to Suhaib Janjua

// Show tooltips always even the stats are zero

Chart.pluginService.register({
  beforeRender: function(chart) {
    if (chart.config.options.showAllTooltips) {
      // create an array of tooltips
      // we can't use the chart tooltip because there is only one tooltip per chart
      chart.pluginTooltips = [];
      chart.config.data.datasets.forEach(function(dataset, i) {
        chart.getDatasetMeta(i).data.forEach(function(sector, j) {
          chart.pluginTooltips.push(new Chart.Tooltip({
            _chart: chart.chart,
            _chartInstance: chart,
            _data: chart.data,
            _options: chart.options.tooltips,
            _active: [sector]
          }, chart));
        });
      });

      // turn off normal tooltips
      chart.options.tooltips.enabled = false;
    }
  },
  afterDraw: function(chart, easing) {
    if (chart.config.options.showAllTooltips) {
      // we don't want the permanent tooltips to animate, so don't do anything till the animation runs atleast once
      if (!chart.allTooltipsOnce) {
        if (easing !== 1)
          return;
        chart.allTooltipsOnce = true;
      }

      // turn on tooltips
      chart.options.tooltips.enabled = true;
      Chart.helpers.each(chart.pluginTooltips, function(tooltip) {
        tooltip.initialize();
        tooltip.update();
        // we don't actually need this since we are not animating tooltips
        tooltip.pivot();
        tooltip.transition(easing).draw();
      });
      chart.options.tooltips.enabled = false;
    }
  }
});

// Show tooltips always even the stats are zero


var canvas = $('#myCanvas2').get(0).getContext('2d');
var doughnutChart = new Chart(canvas, {
  type: 'doughnut',
  data: {
    labels: [
      "Success",
      "Failure"
    ],
    datasets: [{
      data: [45, 9],
      backgroundColor: [
        "#1ABC9C",
        "#566573"
      ],
      hoverBackgroundColor: [
        "#148F77",
        "#273746"
      ]
    }]
  },
  options: {
    // In options, just use the following line to show all the tooltips
    showAllTooltips: true
  }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.bundle.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div>
     <canvas id="myCanvas2" width="350" height="296"></canvas>
</div>

0👍

I use onclick event and bootstrap modal for this issue and disabled Tooltip.

        ,onClick: function(c,i) {
            e = i[0];
            var x_value = this.data.labels[e._index];
            var ID = x_value;
            var Type =1;


                $.ajax({
                            url: 'getsearchresults.asmx/ChartDetayGetir',
                            data: "{ 'ID': '" + ID + "',type:'"+Type+"'}",
                            dataType: "json",
                            type: "POST",
                            contentType: "application/json; charset=utf-8",
                            success: function (data) {

                            document.getElementById("modalheader").innerHTML = x_value;

                            document.getElementById("modalbody").innerHTML = data.d;

                            $('#myModal').modal();

                                    },
                            error: function (response) {
                                alert(response.responseText);
                            },
                            failure: function (response) {
                                alert('Failure');
                            }
                        });






        }

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