I want customize the checking and unchecking legend elements all at once, iam not getting any idea, can we do this? let me know way to do this..
This is an example that does that, plus a variety of other things with legend items and checkboxes, using a series of external controls:
http://jsfiddle.net/simo/57SR9/94/
function:
$('#checkAll').click(function(){
for(i=0; i < chart.series.length; i++) {
if(chart.series[i].selected == false){
chart.series[i].select();
showSeries.call(chart.series[i], {checked: true});
}
}
});