Does the esri javascript api Identify Task Return a FeatureSet?

Question

I am trying to get the results of an identify task using ArcGIS JS API 2.7 into a featureSet so I can utilize this sample http://arcscripts.esri.com/details.asp?dbid=16528 that takes the results of a datagrid store and exports them to an excel file. I have it working where one feature is being exported, I just need to have all selected features export. Does an Identify Task produce a FeatureSet?

Thanks!

 function executeIdentifyTask(geom) {
 //clear the graphics layer 
 map.graphics.clear();
 identifyParams.geometry = geom;
 identifyParams.mapExtent = map.extent;
 identifyTask.execute(identifyParams,function(response){
 var polygonSymbol = new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_DOT, new dojo.Color([151, 249,0,.80]), 3), new dojo.Color([151, 249, 0, 0.45]));
 var markerSymbol = new esri.symbol.SimpleMarkerSymbol(esri.symbol.SimpleMarkerSymbol.STYLE_CIRCLE, 20, new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new dojo.Color([0, 0, 0]), 1), new dojo.Color([25,50,225,0.3]));
 var controlItems = [];
 var surveyItems = [];
 dojo.forEach(response,function(result){
 var feature = result.feature;
 if (result.layerName =="surveys"){
 showSurveysNameGrid();
 feature.setSymbol(polygonSymbol);
 searchType="selSurvey";
 surveyItems.push(attributes);
 var attributes = feature.attributes;
 var csvTextSurv = "DOCUMENT_N;TOWNSHIP_RANGE;SECTION\n"; 
 csvTextSurv += attributes["DOCUMENT_N"] + ";" +
 attributes["TOWNSHIP_RANGE"] + ";" +
 attributes["SECTION"] + "\n";
 document.getElementById("csvSurv").value = csvTextSurv; 
 map.graphics.add(feature);
 }else{
 showPointNameGrid();
 feature.setSymbol(markerSymbol);
 var attributes = feature.attributes;
 controlItems.push(feature.attributes); 
 searchType="selControl"; 
 var csvTextMons = "POINT_NAME;SECTION\n"; 
 csvTextMons += attributes["POINT_NAME"] + ";" +
 attributes["TOWNSHIP_RANGE"] + ";" +
 attributes["SECTION"] + "\n";
 }
 document.getElementById("csvMons").value = csvTextMons; 
 //add selected feature to graphics layer 
 map.graphics.add(feature);
 });
 if(surveyItems.length >0){
 showSurveysNameGrid();
 var surveysStore = new dojo.data.ItemFileReadStore({data: {identifier:'DOCUMENT_N',items:surveyItems}});
 var grid = dijit.byId('grid5');
 grid.setStore(surveysStore);
 }
 if(controlItems.length >0){
 showPointNameGrid();
 var controlStore = new dojo.data.ItemFileReadStore({data:{identifier:'POINT_NAME',items:controlItems}});
 var grid = dijit.byId('grid4');
 grid.setStore(controlStore);
 } 
 });

}

• Steve: elaborate on what a featureset is?

Answer 1

If by featureSet you are referring to the geoJson spec then the answer is no. The identify task returns an identifyResult[]. This contains some basic information about each result and a graphic representation of the geometry.

It looks like the script you are wanting to use wants CSV so where does a FeatureSet come into play?

• Em123: Oops, I did not mean to end it there. I am not sure if the script I want to use needs a featureSet, I just can't figure out why I am only getting one result in my csv output, even though the datagrid displays all the results I select. It seems like it needs to loop through, but again I am not sure. Any ideas?
• Steve: might it be since you are overriding the place you are storing it? ie document.getElementById("csvSurv").value = csvTextSurv; where csvTextSurv is always going to be the last item?
• Em123: Good point. I am such a newbie, what would I use instead to keep this from happening?
• Steve: += would append.