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This is the code i am using for creating dropdown list of layers to be displayedon a map...but the dropdown is not activated ie., when an option is selected that is not shown on the map.i don’t know what is the problem?

Question asked by aneeshasatya on May 22, 2015
Latest reply on May 23, 2015 by pri0ri7y

<!DOCTYPE html>



    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

    <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>

    <title>Simple Map</title>

    <link rel="stylesheet" href="">


      html, body, {

        height: 100%;

        width: 100%;

        margin: 0;

        padding: 0;


      body {

        background-color: #FFF;

        overflow: hidden;

        font-family: "Trebuchet MS";



    <script src=""></script>


        var map;


require(["esri/map", "esri/layers/FeatureLayer", "dojo/domReady!"],

       function (Map, FeatureLayer) {

map = new Map("map", {

basemap: "topo"

center: [79.267180899999970000, 17.052389000000000000], // longitude, latitude


});  // require ends

        function myFunction() {

            var layerUrl = document.getElementById("mySelect").value;

            var demographicsLayer = new FeatureLayer(layerUrl);









    <div id="map"></div>

    <select id="mySelect" onchange="myFunction()">

   <option value="http://localhost:6080/arcgis/rest/services/new/FeatureServer/7">Boundary</option>

  <option value="http://localhost:6080/arcgis/rest/services/rasterD/sde_sde_f_distr/ImageServer">Fluorine</option>

  <option value="http://localhost:6080/arcgis/rest/services/rasterD/sde_sde_p_distr/ImageServer">Population</option>

  <option value="http://localhost:6080/arcgis/rest/services/rasterL/sde_sde_streams/ImageServer">Streams</option>