Updating Chart Data via Ajax?

Hi,

I have an ajax on the setinterval timer and would load the line chart data (the data loads nicely, formatted in json) but It error out update() function. Can someone point me the right direction?. Thank you.

$(function() { $(document).ready(function(){

     var get_data = setInterval(function(){         
        var ajaxrequest;
        ajaxrequest = $.ajax({
            type:"post",
            datatype:"Json",
            url:"index.php?r=site%2FChartdata",
            data: (typeof data ==="string"? data:null),
            success: function(data) { 

                 var mychart //= $('#LineChart .ct-chart');
              mychart.data = data;
              mychart.update();  //<-- Error on this, Function not found.               
            },
        });  
    },3000);
}); 

});

[gionkunz]

If you don’t have the original chart object that was returned during instanciation in this context, then try this:

var mychart = $('#LineChart .ct-chart');
mychart.get(0).__chartist__.update(data);

[Gurupriya-Royalit]

Hello, i am using Chartist JS. and i want to change it when click on date means i want to send date value by ajax and then according to date, chart series value fetch from data base and according to value chart should be change. please any one help me…