title: Chart.js 2.7.2- Multiline get point value onClick
body: <p>I would like to get value foreach point value.
  Don't work because when I click on point I obtain only of the first line value.
  GetElementsAtEvent give me an array of 3 element (element active) but how I can get the clicked value?</p>
  
  <p><a href="http://jsfiddle.net/df6ecrg4/2/" rel="nofollow noreferrer">This</a> the Complete code.</p>
  
  <pre><code>    $(document).on("click", "#canvas", function(event){
              var activePoints = ctx.getElementsAtEvent(event);
          if(activePoints.length &gt; 0){
  
                  var clickedDatasetIndex = activePoints[0]._datasetIndex;
                  var clickedElementindex = activePoints[0]._index;
                  var label = ctx.data.labels[clickedElementindex];
                  var value = ctx.data.datasets[clickedDatasetIndex].data[clickedElementindex]["y"];  
  
                  alert("Clicked: " + label + " - " + value);    
          }
      });
  </code></pre>
  
  <p>Thanks</p>