KML layer not updating when page is reloaded

JohnCaterino — Sun, 23 Oct 2016 12:06:35 GMT

This just may be my ignorance as I am just starting out. ( I'll take any advise on tutorials/videos/books ...etc for dealing with the javascript api --specifically kml & json)....

I used the sample to load a KML file and it displayed fine. I then made some changes to the KML but when the page loads it still displays the original KML data without the changes. If I rename the KML file and then modify the page to load the new file, it displays the new content.

any help, greatly appreciated!!!!

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no">
<title>KML</title>
<link rel="stylesheet" href="https://js.arcgis.com/3.18/dijit/themes/tundra/tundra.css">
<link rel="stylesheet" href="https://js.arcgis.com/3.18/esri/css/esri.css">
<style>
html, body { height: 100%; width: 100%; margin: 0; padding: 0; }
#map { height: 100%; margin: 0; padding: 0; }
#meta {
position: absolute;
left: 20px;
bottom: 20px;
width: 300px;
height: 100px;
z-index: 40;
background: #fff;
color: #777;
padding: 5px;
border: 2px solid #666;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
font-family: arial;
font-size: 0.9em;
}
#meta h3 {
color: #666;
font-size: 1.1em;
padding: 0px;
margin: 0px;
display: inline-block;
}
#loading {
float: right;
}
</style>

"dijit/layout/BorderContainer", "dijit/layout/ContentPane", "dojo/domReady!"
], function(
Map, KMLLayer,
parser, domStyle
) {
map = new Map("map", {
basemap: "topo",
center: [-108.663, 42.68],
zoom: 6
});

parser.parse();

var kmlUrl = "http://79.170.40.180/churchofthecloud.com/apitest/newtest2.kml";
var kml = new KMLLayer(kmlUrl);
map.addLayer(kml);
kml.on("load", function() {
domStyle.set("loading", "display", "none");
});
});
</script>
</head>

<body class="tundra">
<div data-dojo-type="dijit/layout/BorderContainer"
data-dojo-props="design:'headline',gutters:false"
style="width: 100%; height: 100%; margin: 0;">
<div id="map"
data-dojo-type="dijit/layout/ContentPane"
data-dojo-props="region:'center'">
<div id="meta">
<span id="loading"><img src="images/loading_black.gif" /></span>
<h3>Display KML Using a <a href="https://developers.arcgis.com/javascript/3/jsapi/kmllayer-amd.html">KMLLayer</a></h3>
<br />
The map displays a simple KML file that was created using Google Earth and
is hosted on an Esri server. Symbology and attributes are honored.
<div>
</div>
</div>
</body>
</html>

Re: KML layer not updating when page is reloaded

RobertScheitlin__GISP — Sun, 23 Oct 2016 20:13:30 GMT

John,

To prevent a url/file from being cached you just add a query parameter like this:

var kmlUrl = "http://79.170.40.180/churchofthecloud.com/apitest/newtest2.kml?_=" + new Date().getTime();‍

Re: KML layer not updating when page is reloaded

JohnCaterino — Sun, 23 Oct 2016 21:10:26 GMT

Big Thanks... That worked awesome!!!

Your help not only resolves the issue, it motivates to keep playing!!!

topic Re: KML layer not updating when page is reloaded in ArcGIS JavaScript Maps SDK Questions

KML layer not updating when page is reloaded

Re: KML layer not updating when page is reloaded

Re: KML layer not updating when page is reloaded