我想在圖形點擊事件上獲取Label，我正在使用amchart堆疊酒吧。如何在clickgraphitem上獲取amchart堆疊酒吧的標籤
以下是圖表的鏈接，我也加了我的代碼：Stackbar chart。
chart.addListener("clickGraphItem", DashBoardClick);
function DashBoardClick(event) {
alert(event.item.category);
}
假設你的意思是圖形的標題，你可以在事件參數通過對象訪問它作爲documentation注意，然後訪問圖形的title性質，即event.graph.title。
var chart = AmCharts.makeChart("chartdiv",
{
"type": "serial",
"categoryField": "category",
"startDuration": 1,
"categoryAxis": {
"gridPosition": "start"
},
"trendLines": [],
"graphs": [
{
"balloonText": "[[title]] of [[category]]:[[value]]",
"fillAlphas": 1,
"id": "AmGraph-1",
"title": "graph 1",
"type": "column",
"valueField": "column-1"
},
{
"balloonText": "[[title]] of [[category]]:[[value]]",
"fillAlphas": 1,
"id": "AmGraph-2",
"title": "graph 2",
"type": "column",
"valueField": "column-2"
}
],
"guides": [],
"valueAxes": [
{
"id": "ValueAxis-1",
"stackType": "regular",
"title": "Axis title"
}
],
"allLabels": [],
"balloon": {},
"legend": {
"enabled": true,
"useGraphSettings": true
},
"titles": [
{
"id": "Title-1",
"size": 15,
"text": "Chart Title"
}
],
"dataProvider": [
{
"category": "category 1",
"column-1": 8,
"column-2": 5
},
{
"category": "category 2",
"column-1": 6,
"column-2": 7
},
{
"category": "category 3",
"column-1": 2,
"column-2": 3
}
]
}
);
chart.addListener('clickGraphItem', function(event) {
alert(event.graph.title);
})<script src="//www.amcharts.com/lib/3/amcharts.js"></script>
<script src="//www.amcharts.com/lib/3/serial.js"></script>
<script src="//www.amcharts.com/lib/3/themes/light.js"></script>
<div id="chartdiv" style="width: 100%; height: 350px;"></div>