google.visualization.events.addListener(
geomap, "regionClick", function(e) {
console.log(e["region"]);
console.log(data.getValue(e["region"],1));
});
我使用此代码查看单击了哪个区域。 e["region"]
给出该区域的行号,然后使用getValue查看区域(标记)名称。
现在,在控制台日志中显示此错误:
Uncaught Error: Invalid row index 1. Should be in the range [0-14]
行索引1如何无效,因为它在[0-14]范围内?
修改
你去,更多代码:)
<!--
You are free to copy and use this sample in accordance with the terms of the
Apache license (http://www.apache.org/licenses/LICENSE-2.0.html)
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>Google Visualization API Sample</title>
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {"packages": ["geomap"]});
google.setOnLoadCallback(drawMap);
function drawMap() {
var data = new google.visualization.DataTable();
data.addRows(24);
data.addColumn("string", "City");
data.addColumn("number", "Numar anunturi");data.setValue(0, 0, 'Ilfov');
data.setValue(0, 1, 19);
data.setValue(1, 0, 'Giurgiu');
data.setValue(1, 1, 7);
data.setValue(2, 0, 'Brasov');
data.setValue(2, 1, 6);
data.setValue(3, 0, 'Buzau');
data.setValue(3, 1, 3);
data.setValue(4, 0, 'Valcea');
data.setValue(4, 1, 3);
data.setValue(5, 0, 'Dolj');
data.setValue(5, 1, 3);
data.setValue(6, 0, 'Neamt');
data.setValue(6, 1, 2);
data.setValue(7, 0, 'Calarasi');
data.setValue(7, 1, 2);
data.setValue(8, 0, 'Dambovita');
data.setValue(8, 1, 2);
data.setValue(9, 0, 'Prahova');
data.setValue(9, 1, 2);
data.setValue(10, 0, 'Braila');
data.setValue(10, 1, 2);
data.setValue(11, 0, 'Constanta');
data.setValue(11, 1, 2);
data.setValue(12, 0, 'Suceava');
data.setValue(12, 1, 2);
data.setValue(13, 0, 'Caras-Severin');
data.setValue(13, 1, 2);
data.setValue(14, 0, 'Cluj');
data.setValue(14, 1, 2);
data.setValue(15, 0, 'Bihor');
data.setValue(15, 1, 1);
data.setValue(16, 0, 'Bacau');
data.setValue(16, 1, 1);
data.setValue(17, 0, 'Maramures');
data.setValue(17, 1, 1);
data.setValue(18, 0, 'Arges');
data.setValue(18, 1, 1);
data.setValue(19, 0, 'Gorj');
data.setValue(19, 1, 1);
data.setValue(20, 0, 'Ialomita');
data.setValue(20, 1, 1);
data.setValue(21, 0, 'Bucuresti');
data.setValue(21, 1, 1);
data.setValue(22, 0, 'Mures');
data.setValue(22, 1, 1);
data.setValue(23, 0, 'Sibiu');
data.setValue(23, 1, 1);
var options = {width: 800,height:400};
options["region"] = "RO";
options["colors"] = [0xFF8747, 0xFFB581, 0xc06000]; //orange colors
options["dataMode"] = "markers";
var container = document.getElementById("map_chart_div");
var geomap = new google.visualization.GeoMap(container);
google.visualization.events.addListener(
geomap, "regionClick", function(e) {
console.log(e["region"]);
console.log(data.getValue(e["region"],1));
});
geomap.draw(data, options);
}
</script>
</head>
<body style="font-family: Arial;border: 0 none;">
<div id="map_chart_div" style="width: 800px; height: 400px;"></div>
</body>
</html>
答案 0 :(得分:5)
我无法使用您发布的代码重现您的问题 - 我似乎无法触发regionClick函数 - 但您看到的错误消息让我怀疑您的问题是{ {1}}返回一个字符串,而不是一个数字。
尝试将此添加到您的功能中:
e["region"]
然后,如果结果你得到一个字符串,你可以试试:
google.visualization.events.addListener(
geomap, "regionClick", function(e) {
console.log(e["region"]);
console.log("Type of value is: " + typeof(e["region"]));
console.log(data.getValue(e["region"],1));
});