See the sample below, which adds a DynamicMapServiceLayer to a map using the URL:http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/HomelandSecurity/operations/MapServerNavigating to this REST endpoint in a browser shows the component Layers, and each layer's Fields.How can I retrieve this information programatically? I need a list of the available layers (0,1,2) and each layer's available fields (eg layer 0 contains objectid, lifecyclestatus, incident_number, etc)My goal is to add this information to a Query function, so I need to know that I can search layer 1 for the field collection_time, etc.Looping through the layerInfos tells me about each available layer - how can I retrieve information on the fields? (One option is to create a new feature layer from each layer and add it to the map, but I'd really like to avoid this workaround).Thanks,Steve<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=7,IE=9" />
<!--The viewport meta tag is used to improve the presentation and behavior of the samples
on iOS devices-->
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title>layer infos</title>
<link rel="stylesheet" type="text/css" href="http://serverapi.arcgisonline.com/jsapi/arcgis/2.4/js/dojo/dijit/themes/claro/claro.css">
<script type="text/javascript" src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=2.4"></script>
<script type="text/javascript">
dojo.require("esri.map");
function init() {
var map = new esri.Map("map");
var basemap = new esri.layers.ArcGISTiledMapServiceLayer("http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer");
map.addLayer(basemap);
var url = "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/HomelandSecurity/operations/MapServer/";
var dynLayer = new esri.layers.ArcGISDynamicMapServiceLayer(url);
map.addLayer(dynLayer);
dojo.connect(dynLayer, "onLoad", function() {
var infos = dynLayer.layerInfos;
for (var i = 0; i <= infos.length - 1; i++) {
var layerId = infos.id;
var restEndPoint = url + layerId;
//restEndPoint is the layer's URL - how can I retrieve its fields?
}
});
}
dojo.addOnLoad(init);
</script>
</head>
<body class="claro">
<div id="map" style="width:900px; height:600px; border:1px solid #000;"></div>
</body>
</html>
