ArcGIS Server 9.3 - Javascript API - Selecting Feature Problem

Question

I have ArcGIS Server 9.3, and I'm trying to use the JS API. I successfully displayed the map, and I can locate and zoom to a feature based on ParcelID value. The problem is I can't highlight this parcel. I mean I tried to configure the symbol, but its not being displayed. Here's the code:

<script>
 dojo.require("esri.map");
 dojo.require("esri.layers.FeatureLayer");
 var map,featureLayer,query,sfs;
 function init() {
 map = new esri.Map("mapDiv", { 
 sliderOrientation: "horizontal"
 }); 
 var imageParameters = new esri.layers.ImageParameters();
 imageParameters.format = "PNG24"; //set the image type to PNG24, note default is PNG8.
 //Takes a URL to a non cached map service.
 var dynamicMapServiceLayer = new esri.layers.ArcGISDynamicMapServiceLayer("http://*******/*****/rest/services/****/MapServer", {
 "opacity":1, 
 "imageParameters":imageParameters
 });
 dynamicMapServiceLayer.setVisibleLayers([4,10,11,16]);
 map.addLayer(dynamicMapServiceLayer);
 //Locate Parcel--------
 sfs = new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID,new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_DASHDOT,new dojo.Color([255,0,0]), 2),new dojo.Color([255,255,0,0.25]));
 featureLayer = new esri.layers.FeatureLayer("http://*****/*****/rest/services/*****/MapServer/4", {
 outFields: ["*"],
 mode: esri.layers.FeatureLayer.MODE_SELECTION
 });
 featureLayer.setSelectionSymbol(sfs);
 map.addLayers([featureLayer]);
 query = new esri.tasks.Query(); 
 query.where = "ParcelID_NS = '101010101'";
 var deferred = featureLayer.selectFeatures(query, esri.layers.FeatureLayer.SELECTION_NEW, function (selection) {
 var stateExtent = selection[0].geometry.getExtent().expand(3.0);
 map.setExtent(stateExtent);
 });
 //---------------------- 
 }
 dojo.ready(init);
</script>

Any help? Thanks.

• Jagadesh: Your code is almost correct

Answer 1

 var deferred = featureLayer.selectFeatures(query, esri.layers.FeatureLayer.SELECTION_NEW, function (selection) {
 var stateExtent = selection[0].geometry.getExtent().expand(3.0);
 map.setExtent(stateExtent);

try this instead of

 featureLayer.selectFeatures(query, esri.layers.FeatureLayer.SELECTION_NEW);

You can get the selected features from featurelayer.FeatureSelection() method available which will return as Graphics from that you do getExtent().expand(3.0);

• Mathboy: I can't see any deference ?
• Jagadesh: Try the updated one once. For me its worked fine.
• Jagadesh: Is it worked for you