topic Re: QueryTask Result to a Feature Layer in ArcGIS JavaScript Maps SDK Questions

QueryTask Result to a Feature Layer

DavidKucharski — Mon, 15 Oct 2018 17:02:23 GMT

I am trying to use the FeatureSet results, from a QueryTask, as the Source of a Feature Layer. No matter how I am doing it, I cannot seem to get the Feature Layer loaded. Please see my logic below and let me know what I am doing wrong.

1. var qTask = new QueryTask({
url: zipCodeUrl
});

2. var params = new Query({
returnGeometry: true,
outFields: ["*"]
});

3. params.where = "ID_ IN (" + blue.value + ")";
qTask.execute(params)
.then(getBlueResults)
.catch(promiseRejected);

function getBlueResults(response) {

layer = new FeatureLayer({
source: response.features, // autocast as an array of esri/Graphic
// // create an instance of esri/layers/support/Field for each field object
fields: bluefields, // This is required when creating a layer from Graphics
objectIdField: "ObjectID"
});

map.add(layer);
}

Re: QueryTask Result to a Feature Layer

RobertScheitlin__GISP — Mon, 15 Oct 2018 17:35:12 GMT

David,

You are missing the required geometryType property (when using source). Do you see any errors in the browsers web console?

Re: QueryTask Result to a Feature Layer

DavidKucharski — Mon, 15 Oct 2018 18:11:14 GMT

That did it.

layer = new FeatureLayer({
spatialReference: { wkid: 4326 },
source: response.features, // autocast as an array of esri/Graphic
fields: bluefields,
renderer: blueRenderer,
geometryType: "polygon",
objectIdField: "ObjectID"
});

map.add(layer)