make esri.dijit.Popup only return popup when feature is clicked

Question

I have a popup/infowindow that returns info for 2 of the layers in my map. However, when I click anywhere in the map the popup also comes up that says "no information available". Is there a way to disable this so that the popup only appears when a feature is clicked?

evtguy · Answer

I would second Steve's suggestion about tying the popup to a feature layer. For example, in one of my maps, I define the popup content at the beginning of my initMap() function like this: var removalTemplate = new esri.InfoTemplate(); removalTemplate.setContent('

Road Name:	${Name}
Snow Removal Priority:	${Priority:formatPriorityLabel}

'); removalTemplate.setTitle('${Name}'); Next, you specify the template when you create the feature layer: // Define the Snow Removal Route layer theSnowRemovalLayer = new esri.layers.FeatureLayer("URL to feature layer", { mode: esri.layers.FeatureLayer.MODE_ONDEMAND, infoTemplate:removalTemplate, outFields: ["*"], opacity:0.80, visible: false }); Towards the end, but still within the initMap() function, I associate the popup with the specific feature layer: dojo.connect(theSnowRemovalLayer,"onClick",function(evt){ //Listener event for feature selection and the popup info widow var query = new esri.tasks.Query(); query.geometry = pointToExtent(map,evt.mapPoint,15); var deferred = theSnowRemovalLayer.selectFeatures(query,esri.layers.FeatureLayer.SELECTION_NEW); map.infoWindow.resize(map.width * 0.55,map.height * 0.25); map.infoWindow.setFeatures([deferred]); map.infoWindow.show(evt.mapPoint); }); Hopefully that makes sense. Good luck! Steve

StephenLead · Answer

I have a popup/infowindow that returns info for 2 of the layers in my map

How are you calling the popup - what is causing the query to run? Are you running an IdentifyTask, for example?Is there a way to disable this so that the popup only appears when a feature is clicked?

You could associate an infoWindow with a feature layer. In that case, the infoWindow will show when clicking on the feature. When you click away from a feature, nothing happens.

Another option is to run a queryTask on click. If there are features found, display them in the infoWindow. If not, don't display the infoWindow.

__Rich_ · Answer

How are you showing the popup?

I'm guessing it's designed to inform the user that there's nothing of interest at the location that they clicked.