How do I...generate dynamic value of "doughNutChart" using chart.js

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Hi.. I am new to chart creation. I am refering "DoughNutChart" of Example 2. I need the value of "DoughNutChartData" and that should be dynamically generate the values. And the value should be highlight normally, not after clicking on the chart. Please help me as soon as possible, It is very important.

Posted 15-Sep-14 21:54pm

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Suraj Sahoo | Coding Passion · Answer 1 · 2014-09-22T00:43:00

Fiddle for google api donought charts[^]

A easy and best way to implement google dounought charts.
If you want to add dynamic data to the chart just make a simple ajax call inside the function drawchart like below snippet:

JavaScript

function drawChart() {
            $.get($Url.resolve("/Work/GetDevelopersWork"), function (data1) {
            if (data1.WorkIndotNet!= 0 || data1.WorkInJava!= 0 || data1.WorkInPhp!= 0)      {
          var data = new google.visualization.DataTable();
                    data.addColumn('string', 'Work');
                    data.addColumn('number', 'Hours');
                    data.addRows([
                                [data1.WorkIndotNet+ '/' + (data1.WorkInJava+ data1.WorkInPhp), data1.TotalWork],
                                [data1.WorkIndotNet+ '/' + (data1.WorkInJava+ data1.WorkInPhp)
                                , data1.TotalWorkForDay] 
                    ]);
                    var options = {
                        pieHole: 0.7,
                        colors: ['#ED462F','#F49F31', '#40ADE7'],
                        backgroundColor: 'transparent',
                        width: 200,
                        height: 300,
                        legend: { position: 'bottom-vert' },
                        pieSliceText: "none"
                    };


                    var chart = new   google.visualization.PieChart(document.getElementById('chart_div'));
                    chart.draw(data, options);
                } else {
                    var data = 
                            new google.visualization.DataTable();
                    data.addColumn('string', 'Work');
                    data.addColumn('number', 'Hours');
                    data.addRows([
                        ['No Work Information', 1],
                        [" ", 0],
                        [" ", 0],
                        [" ", 0]
                    ]);
                    var options = {
                        pieHole: 0.7,
                        colors: ['#b3b3b3', '#b3b3b3'],
                        backgroundColor: 'transparent',
                        width: 200,
                        height: 300,
                        tooltip: { trigger: 'selection' },
                        states: {
                            hover: {
                                enabled: false,
                                halo: {
                                    enabled: false
                                }
                            }
                        },
                        legend: { position: 'bottom-vert' },
                        pieSliceText: "none"
                    };


                    var chart = 
                            new google.visualization.PieChart(document.getElementById('chart_div'));
                    chart.draw(data, options);
                }

            });