QueryTask Help

CurtThue — Tue, 20 Nov 2012 19:30:27 GMT

Hello
I have no experience with the JavaScript API (only the WebADF and Silverlight).
I am trying to teach myself, and decided to create a QueryTask based on this documentation( http://help.arcgis.com/en/webapi/javascript/arcgis/help/jshelp/intro_querytask.htm#webprint )

I cannot get my results to display. Here is my html:

[HTML]<!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" />
<title> Map</title>
<script type="text/javascript" src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=2.6"></script>
<script type="text/javascript">

function init() {
   map = new esri.Map("mapDiv");
   var layer = new esri.layers.ArcGISDynamicMapServiceLayer("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer");
   map.addLayer(layer);

   queryTask = new esri.tasks.QueryTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0");

   query = new esri.tasks.Query();
   query.returnGeometry = true;
   query.outFields = ["*"];

   infoTemplate = new esri.InfoTemplate("${CITY_NAME}", "Name : ${CITY_NAME}<br/> State : ${STATE_NAME}<br />Population : ${POP1990}");

   symbol = new esri.symbol.SimpleMarkerSymbol();
   symbol.setStyle(esri.symbol.SimpleMarkerSymbol.STYLE_SQUARE);
   symbol.setSize(20); symbol.setColor(new dojo.Color([255, 255, 0, 0.5]));

}

function executeQueryTask(population) {
   query.where = "POP1990 > " + population;
   queryTask.execute(query, showResults);
}

function showResults(featureSet) {
   alert("show results");
   map.graphics.clear();
   var resultFeatures = featureSet.features;

   for (var i = 0, il = resultFeatures.length; i < il; i++) {
    var graphic = resultFeatures;
    graphic.setSymbol(symbol);
    graphic.setInfoTemplate(infoTemplate);
    map.graphics.add(graphic);
   }
}

dojo.addOnLoad(init);
</script>
</head>
<body>
<br />
US city population greater than :
<input type="text" id="population" value="500000" />
<input type="button" value="Get Details" onclick="executeQueryTask(dojo.byId('population').value);" />
<div id="mapDiv" style="width: 600px; height: 600px; border: 1px solid #000;">
</div>
Click on a city once it's highlighted to get an InfoWindow.
</body>
</html>[/HTML]--
Any help is greatly appreciated!

Re: QueryTask Help

__Rich_ — Wed, 21 Nov 2012 07:35:04 GMT

I've just tried the code that you posted - works fine for me???

You're missing some CSS but that's not affecting the functionality.

Also, you're using an old version (v2.6) of the API, any particular reason why you aren't using the latest version? (v3.2)

Re: QueryTask Help

CurtThue — Wed, 21 Nov 2012 19:04:40 GMT

I've just tried the code that you posted - works fine for me???

You're missing some CSS but that's not affecting the functionality.

Also, you're using an old version (v2.6) of the API, any particular reason why you aren't using the latest version? (v3.2)

Yes, it is working now! Maybe there was an issue with the service or something wrong locally. Thanks for looking.

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