topic Re: Identify popup issues in ArcGIS JavaScript Maps SDK Questions

Identify popup issues

DanielSchatt — Wed, 29 Jun 2016 19:51:35 GMT

hi, I'm working with the version 3.17 and I'm generating popups to display feature attributes using the IdentifyTask object. I basically used the sample code for "Display identify results in a popup". I have two issues:

1) I used the LAYER_OPTION_VISIBLE setting for my identify parameters. But it's still identifying on features that aren't visible. I don't know why...

2) When I click on the map but not on a feature, a popup displays saying "No information available". I'd like nothing to pop up when I do this, because I have other click tools and I don't want this to pop up unnecessarily. Not sure how to do this..

Thanks for any help...

P.S. I would love to provide my code but I have absolutely no idea how to cut and paste it. I tried to do it directly and also using the "Javascript Syntax Highlighting" thing. In both cases, the spacing is completely messed up and I see strange squiggles and boxes, etc. Sorry...

Re: Identify popup issues

FC_Basson — Fri, 10 Dec 2021 20:44:16 GMT

1) In your Identify Parameters, define the layerIds as only the visible layers on the map for the selected layer

identifyParams.layerIds = myLayer.visibleLayers;

You can do this in the executeIdentifyTask function if your visible layers are goint to change dynamically

2) Set the popup to only show if the identify response returns 1 or more feature

function executeIdentifyTask (event) {
  map.infoWindow.hide();
  identifyParams.geometry = event.mapPoint;
  identifyParams.mapExtent = map.extent;
  var deferred = identifyTask
    .execute(identifyParams)
    .addCallback(function (response) {
      // response is an array of identify result objects
      // Let's return an array of features.        
    if (response.length > 0) {
      map.infoWindow.show(event.mapPoint);  
      return arrayUtils.map(response, function (result) {
        var feature = result.feature;
        var layerName = result.layerName;
        feature.attributes.layerName = layerName;
        if (layerName === 'Tax Parcels') {
          var taxParcelTemplate = new InfoTemplate("",
            "${Postal Address} <br/> Owner of record: ${First Owner Name}");
          feature.setInfoTemplate(taxParcelTemplate);
        }
        else if (layerName === 'Building Footprints') {
          console.log(feature.attributes.PARCELID);
          var buildingFootprintTemplate = new InfoTemplate("",
            "Parcel ID: ${PARCELID}");
          feature.setInfoTemplate(buildingFootprintTemplate);
        }
        return feature;
      });          
    }
  });
   // InfoWindow expects an array of features from each deferred
   // object that you pass. If the response from the task execution
   // above is not an array of features, then you need to add a callback
   // like the one above to post-process the response and return an
   // array of features.
  map.infoWindow.setFeatures([deferred]);
}

Re: Identify popup issues

DanielSchatt — Thu, 30 Jun 2016 19:49:51 GMT

thanks FC! Much appreciated!!

Dan