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我有一个使用谷歌地图API显示邮编的问题。 但是,它给出了一个错误:在line谷歌地图地理编码 - offsetWidth
未处理的异常...,列...在https://maps.gstatic.com/maps-api-v3/api/js/19/6/main.js
0x800a138f - JavaScript的运行时错误:未定义或空引用
无法获取财产 'offsetWidth'你能给我一些指导吗?
代码文件:
public string location = string.Empty;
protected void Page_Load(object sender, EventArgs e)
{
using (OleDbConnection conn = new OleDbConnection())
{
String connection = System.Configuration.ConfigurationManager.ConnectionStrings["google_string"].ConnectionString;
conn.ConnectionString = connection;
conn.Open();
String sql = "select * from tbl_Post";
OleDbCommand cmd = new OleDbCommand(sql,conn);
var rdr = cmd.ExecuteReader();
rdr.Read();
if(!string.IsNullOrEmpty(rdr["location"].ToString()))
{
location = rdr["location"].ToString();
}
}
}
}
}
asp文件:
<div>
<%--map canvas--%>
<style type="text/css">
html, body, #map-canvas {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?key=....">
</script>
<script type="text/javascript">
var geocoder;
var map;
function initialize() {
geocoder = new google.maps.Geocoder();
var latlng;
var mapOptions = {
//street level
center: new google.maps.LatLng(-34.397, 150.644),
zoom: 18,
}
map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
//load post code address (CALLING FUNCTION)
codeAddress();
}
google.maps.event.addDomListener(window, "load", initialize);
function codeAddress() {
geocoder.geocode({ 'address': '<%= location%>' }, function (results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location
});
} else {
alert("Geocode was not succesfull for the following reason" + status);
}
});
}
</script>
</div>
这是绝对正确的,我忘了把这一行。现在它正在工作。 – serb 2015-01-16 17:47:13
非常感谢。 – serb 2015-01-16 17:49:08
非常欢迎您!很高兴我能帮上忙 – Izzy 2015-01-16 21:20:46