[Chartjs]-Chart.js multiTooltip labels

by

134👍

Change 

window.myBar = new Chart(ctx).Line(barChartData, {
   responsive : true,
   animation: true,
   barValueSpacing : 5,
   barDatasetSpacing : 1,
   tooltipFillColor: "rgba(0,0,0,0.8)",                
   multiTooltipTemplate: "<%= label %> - <%= value %>"
});

to:

window.myBar = new Chart(ctx).Line(barChartData, {
   responsive : true,
   animation: true,
   barValueSpacing : 5,
   barDatasetSpacing : 1,
   tooltipFillColor: "rgba(0,0,0,0.8)",                
   multiTooltipTemplate: "<%= datasetLabel %> - <%= value %>"
});

The change is to the last line

multiTooltipTemplate: "<%= datasetLabel %> - <%= value %>"

datasetLabel gets the value of the label from the dataset objects (in this case ‘Bob’ and ‘Tina’), whereas label gets the caption printed on the x-axis (part of the labels array)

10👍

want to update the answer, because I was searching for a long time.

You can now change the tooltips settings inside the options. See Docu:
http://www.chartjs.org/docs/#chart-configuration-tooltip-configuration

As for the asked question, to show all X data.

window.myBar = new Chart(ctx).Line(barChartData, {
  tooltips: {
   mode: 'label'
 }           
});

Cheers
Hannes

1👍

As I answered here, you can give multiTooltipTemplate a function. Put a breakpoint inside that function with ‘debugger’, and explore the given object for all the properties you’d like. Then construct a string to be displayed in your tooltip:

multiTooltipTemplate: function(v) {debugger; return someManipulation(v);}
tooltipTemplate: function(v) {return someOtherManipulation(v);}

1👍

Similar to the answer by Hannes but the documentation has been updated since then – There are various options now and the link he provided no longer goes anywhere as that option is deprecated.

I’m adding a new answer as it took me a while to find.

This is x mode – displays multiple dataset info in tooltip based on x axis

var chart = new Chart(ctx, {
    type: 'line',
    data: data,
    options: {
        tooltips: {
            mode: 'x'
        }
    }
})

http://www.chartjs.org/docs/latest/general/interactions/modes.html#x

There is also ‘y’ mode. Label mode is now deprecated.

You can also use ‘point’, ‘index’ and ‘nearest’ mode.

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