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ASP.NET Google Maps Javascript API V3 实战基础篇一在事件侦听器中使用闭包

2010-10-18 15:50 411 查看

ASP.NET Google Maps Javascript API V3 实战基础篇一在事件侦听器中使用闭包

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Event_Closure.aspx.cs"
Inherits="Samples.Events.Event_Closure" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>在事件侦听器中使用闭包</title>
<style type="text/css">
#maps
{
height: 500px;
}
</style>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=zh-CN"></script>
<script language="javascript" type="text/javascript">
var map;
//初始化
function initialize() {
var LatLng = new google.maps.LatLng(-25.363882, 131.044922);
var Options = {
zoom: 4, center: LatLng, mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("maps"), Options);
var southWest = new google.maps.LatLng(-31.203405, 125.244141);
var northEast = new google.maps.LatLng(-25.363882, 131.044922);
var bounds = new google.maps.LatLngBounds(southWest, northEast);
map.fitBounds(bounds);
var lngSpan = northEast.lng() - southWest.lng();
var latSpan = northEast.lat() - southWest.lat();
//生成五个点并生成标记
for (var i = 0; i < 5; i++) {
var location = new google.maps.LatLng(southWest.lat() + latSpan * Math.random(), southWest.lng() + lngSpan * Math.random());
var marker = new google.maps.Marker({
position: location, map: map
});
var j = i + 1;
marker.setTitle(j.toString());
attachSecretMessae(marker, i);
}
}
//生成相应信息窗口
function attachSecretMessae(marker, number) {
var message = ["This", "is", "the", "secret", "message"];
var infowindow = new google.maps.InfoWindow({
content: message[number], size: new google.maps.Size(50, 50)
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.open(map, marker);
});
}
//在window的load事件中进行加载
google.maps.event.addDomListener(window, "load", initialize);
</script>
</head>
<body>
<form id="form1" runat="server">
<div id="maps">
</div>
</form>
</body>
</html>

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