topic Re: not getting any selection results, JSAPI 3.21 with WABuilder 2.5 in ArcGIS JavaScript Maps SDK Questions

not getting any selection results, JSAPI 3.21 with WABuilder 2.5

MattBorden — Thu, 22 Mar 2018 22:37:47 GMT

I'm using JSAPI 3.21 with WABuilder 2.5, getting the below error, not sure why?

my guess is maybe a bad where clause and not getting any selection results, or bad syntax and not using selection results correctly with JSAPI, any help would be great

thanks Matt

"esri/tasks/query",

"esri/graphic",

...

function(

...

Query,

Graphic,

//get layer

var currentLayer = this.map.getLayer(this.map.graphicsLayerIds[1]);

//create query

var query = new Query();

query.where = "parcel_id = '01364000010000'";

//query to get selection on feature layer

currentLayer.selectFeatures(query);

//get the extent

theExtent = currentLayer.getSelectedFeatures().geometry.getExtent();

//zoom to map extent

this.map.setExtent(theExtent);

debug results from chrome dev tools

Re: not getting any selection results, JSAPI 3.21 with WABuilder 2.5

RobertScheitlin__GISP — Fri, 23 Mar 2018 03:01:08 GMT

Matt,

It looks like you need to wait for the selection method to complete before you try and access the selected feature. The select features method returns a deferred so you need to wait for the deferred to resolve.

Re: not getting any selection results, JSAPI 3.21 with WABuilder 2.5

MattBorden — Fri, 23 Mar 2018 16:41:50 GMT

thanks for the tip Robert, I'm trying timeouts and promises to see if this fixes it, I'll share the results when I have them

Re: not getting any selection results, JSAPI 3.21 with WABuilder 2.5

RobertScheitlin__GISP — Fri, 10 Dec 2021 21:18:25 GMT

Matt,

Here is a quick example of working with the deferred:

curentLayer.selectFeatures(query, function(result){
  //todo work with the selection result
  //now that the selection is complete
});‍‍‍‍