How get sum of total values in stackedBar ChartJs

Question

I\'m trying to get the sum of all values of a stackedBar and include this total in tooltip.

Note: my datasets aren\'t static, this is an example

Answer 1

@Haider this is what you were looking for, I had the same problem. I have reused your code and built upon it @tektiv

I have made one small change where instead of building into the label I have made use of the afterbody. This removes the key color

afterBody code:

                afterBody: function (tooltipItem, data) {
                  var corporation = data.datasets[tooltipItem[0].datasetIndex].label;
                var valor = data.datasets[tooltipItem[0].datasetIndex].data[tooltipItem[0].index];
                var total = 0;
                for (var i = 0; i < data.datasets.length; i++)
                    total += data.datasets[i].data[tooltipItem[0].index];  
                return "Total : $" + total;
            }

Full code here at JSFiddle

Picture demonstration of the finished tooltip