这是我的小提琴：http://jsfiddle.net/6LXVQ/1223/
我希望能够做的是向下钻取到第二级，该级别也是分组列。现在，如果您钻入任何顶级列，您将在第二级获得单列。有什么想法吗？
我目前的代码：
$（function（）{
// Create the chart
$('#container').highcharts({
chart: {
type: 'column'
},
title: {
text: 'Basic drilldown'
},
xAxis: {
type: 'category'
},
legend: {
enabled: false
},
plotOptions: {
series: {
borderWidth: 0,
dataLabels: {
enabled: true,
}
}
},
series: [{
'name': 'ROI',
'data': [{
"name": "USA",
"level": 1,
"parent": "",
"y": 0.629820585402,
"drilldown": "12000"
}]
}, {
'name': 'BOI',
'data': [{
"name": "USA",
"level": 1,
"parent": "",
"y": 3.29620816518,
"drilldown": "12000"
}]
}],
drilldown: {
series: [{
"id": "12000",
"name": "USA",
"data": [{
"name": "a",
"level": 2,
"parent": "12000",
"y": null,
"drilldown": "12400"
}, {
"name": "b",
"level": 2,
"parent": "12000",
"y": null,
"drilldown": "12300"
}, {
"name": "c",
"level": 2,
"parent": "12000",
"y": 1,
"drilldown": "12200"
}, {
"name": "d",
"level": 2,
"parent": "12000",
"y": null,
"drilldown": "12500"
}, {
"name": "e",
"level": 2,
"parent": "12000",
"y": 4,
"drilldown": "12100"
}, {
"name": "f",
"level": 2,
"parent": "12000",
"y": null,
"drilldown": "12600"
}]
}, {
"id": "12400",
"name": "a",
"data": [{
"name": "g",
"level": 3,
"parent": "12400",
"y": [1, 2],
"drilldown": "12410"
}, {
"name": "h",
"level": 3,
"parent": "12400",
"y": [2, 3],
"drilldown": "12430"
}, {
"name": "i",
"level": 3,
"parent": "12400",
"y": [1, 2],
"drilldown": "12420"
}, {
"name": "j",
"level": 3,
"parent": "12400",
"y": [2, 3],
"drilldown": "12410"
}, {
"name": "k",
"level": 3,
"parent": "12400",
"y": null,
"drilldown": "12430"
}, {
"name": "l",
"level": 3,
"parent": "12400",
"y": null,
"drilldown": "12420"
}]
}, {
"id": "12300",
"name": "b",
"data": [{
"name": "m",
"level": 3,
"parent": "12300",
"y": null,
"drilldown": "12310"
}, {
"name": "n",
"level": 3,
"parent": "12300",
"y": null,
"drilldown": "12310"
}]
}, {
"id": "12200",
"name": "c",
"data": [{
"name": "o",
"level": 3,
"parent": "12200",
"y": null,
"drilldown": "12220"
}, {
"name": "p",
"level": 3,
"parent": "12200",
"y": 0.757404909208,
"drilldown": "12210"
}, {
"name": "q",
"level": 3,
"parent": "12200",
"y": null,
"drilldown": "12230"
}, {
"name": "r",
"level": 3,
"parent": "12200",
"y": null,
"drilldown": "12220"
}, {
"name": "w",
"level": 3,
"parent": "12200",
"y": 0.757404909208,
"drilldown": "12210"
}, {
"name": "t",
"level": 3,
"parent": "12200",
"y": null,
"drilldown": "12230"
}]
}, {
"id": "12500",
"name": "d",
"data": [{
"name": "v",
"level": 3,
"parent": "12500",
"y": null,
"drilldown": "12510"
}, {
"name": "w",
"level": 3,
"parent": "12500",
"y": null,
"drilldown": "12510"
}]
}]
}
})
});