Datetime axis label in highcharts -


i have plot getting data form mssql table in json format datetime axis labels shows 1 point. datetime format in json epoc format [1325397600000,1325484000000,1325570400000,1325656800000,1325743200000,1325829600000].

what possibly problem?

here code using:

$(document).ready(function() {         var options = {             chart: {                 renderto: 'container',                 type: 'line',                 marginright: 130,                 marginbottom: 60             },             title: {                 text: 'pressure , temperature',                 x: -20 //center             },             subtitle: {                 text: '',                 x: -20             },             xaxis: {                 categories: []      type: 'datetime',                },             yaxis: {                 title: {                     text: 'temperature '                 },                 plotlines: [{                     value: 0,                     width: 1,                     color: '#808080'                 }]             },             tooltip: {                 formatter: function() {                         return '<b>'+ this.series.name +'</b><br/>'+                         this.x +': '+ this.y;                 }             },             legend: {                 layout: 'vertical',                 align: 'right',                 verticalalign: 'top',                 x: -10,                 y: 100,                 borderwidth: 0             },             series: []          }          $.getjson("data3.php", function(json) {             options.xaxis.categories = json[0]['data'];             options.series[0] = json[1];     options.series[1] = json[2];             chart = new highcharts.chart(options);          });     });

in these lines: 

options.series[0] = json[1]; options.series[1] = json[2];

you try add 2 series, based on json meanas try reference 1 point series, in other words construction means:

 options.series[0] = 1325397600000;  options.series[1] = 1325484000000;

i advice familiar correct series structure (data array included).

http://docs.highcharts.com/#preprocessing


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