I am using custom tooltip like below but one problem is on hovering any stack i am seeing the text as common but i should see the idle time alone on hovering idle time and working time on hovering run time .
var toolTipCustomFormatFn = function (value, itemIndex, serie, group, categoryValue, categoryAxis) {
return ‘<DIV style=”text-align:left”><b>Time: ‘ +
‘</b><br />Run Time: ‘ + $.x.y.z[itemIndex].RunTime +
‘</b><br />Idle Time: ‘ + $.x.y.z[itemIndex].IdleTime+
‘<br />During: ‘ + $.x.y.z[itemIndex].XAxisItem;
};