FeatureLayer selectFeatures does not return "features" and "method"

[PitersonPaulgek]

Hi,

Version 3.17.

We surprised that FeatureLayer selectFeatures() method does not return "features" and "method" - just Array of objects.

And help is not correct

FeatureLayer | API Reference | ArcGIS API for JavaScript 3.18 

That means there is a difference to use QueryTask.execute() or FeatureLayer.selectFeatures().

Should we use 3.18?

Any help please.

[RobertScheitlin__GISP]

Piterson,

   Not sure how your code is handling the FeatureLayer.selectFeatures but this sample does return feature and method just fine (I just added a console.info(evt)):

ArcGIS API for JavaScript Sandbox 

        censusBlockPointsLayer.on("selection-complete", function(evt) {
          console.info(evt);
          ....‍‍‍

[PitersonPaulgek]

Robert,

Thank you for the response.

I see.

Please try this

censusBlockPointsLayer.on("selection-complete", function(evt) {
var query = new Query();
query.outFields = ["*"];
query.where = "OBJECTID < 5";

censusBlockPointsLayer.selectFeatures(query, FeatureLayer.SELECTION_NEW, function (featureSet) {
console.info(featureSet);
});
//console.info(evt);
var totalPopulation = sumPopulation(censusBlockPointsLayer.getSelectedFeatures());
var r = "";
r = "<b>The total Census Block population within the drive time polygon is <i>" + totalPopulation + "</i>.</b>";
dom.byId('messages').innerHTML = r;
});

[RobertScheitlin__GISP]

What is the point in doing a selection inside the response of another selection. Also by adding that, you would be creating an infinite loop in your code, because you are executing a selection inside the selection complete handler event.

[PitersonPaulgek]

You are right.

Could we do it in

function initFunctionality() {
var query2 = new Query();
query2.outFields = ["*"];
query2.where = "OBJECTID < 5";

censusBlockPointsLayer.selectFeatures(query2, FeatureLayer.SELECTION_NEW, function (featureSet) {
console.info(featureSet);
});

...

};

The print in console is the same: Array of Objects

[RobertScheitlin__GISP]

Piterson,

   OK the difference is that you are using an inline deferred handler verses an on event deferred handler and the return is different by design for these. When you do a inline handler like you are the returned result is only an array of graphics as you would already have access to the selection method.

[PitersonPaulgek]

Robert,

This makes sense. 

Could you please provide an example when we get "features" and "method" from selectFeatures()?

[RobertScheitlin__GISP · Accepted solution]

Piterson,

  That was in my very first reply:

        censusBlockPointsLayer.on("selection-complete", function(evt) {
          console.info(evt);
          ....

[PitersonPaulgek]

Many Thanks, Robert.