Why is Bing Maps 7 AJAX control not lazy-loading?
I'm trying to use Bing Maps 7.0 API with Lazy Loading, as this seem to be supported with the onScriptLoad parameter. I used this minimal test case:
<!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>
<title>Bing Maps Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<div id='mapDiv' style="position:absolute; width:600px; height:400px;"></div>
<script type="text/javascript">
function initMap() {
console.log('Callback called');
var map = new Microsoft.Maps.Map(document.getElementById("mapDiv"), {credentials:"<API KEY>"});
}
function loadMapControl()
{
var script = document.createElement("script");
script.setAttribute("src", "http://dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=7.0&onScriptLoad=initMap");
script.setAttribute("type", "text/javascript");
document.documentElement.firstChild.appendChild(script);
console.log('Tag appened');
}
setTimeout(loadMapControl, 1000);
</script>
</body>
</html>
The callback is called as expected, but Firebug throws me an Microsoft.Maps.Map is not a constructor error. This even if I delay the map creation by 10 seconds after the callback is called via setTimeout.
The simple example in Bing docs, however, is working perfectly:
<!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>开发者_C百科
<title>Bing Maps Test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script charset="UTF-8" type="text/javascript" src="http://ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=7.0"></script>
</head>
<body>
<div id='mapDiv' style="position:absolute; width:600px; height:400px;"></div>
<script type="text/javascript">
var map = new Microsoft.Maps.Map(document.getElementById("mapDiv"), {credentials:",API KEY>"});
</script>
</body>
</html>
Has anybody succeeded in getting the API 7.0 to work with lazy loading?
Thanks.
FYI, this issue has finally been fixed in the newest release of the Maps API. Everything is working as expected with this new version.
加载中,请稍侯......
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