FeatureLayer source for LabelLayer

TracySchloss — Fri, 10 Dec 2021 22:58:21 GMT

I have featureLayer that is loaded as a FeatureServer so I can add features to it. Adding to the featureLayer through applyEdits adds graphics to this layer. I'd also like this layer to be a source for my LabelLayer, so the features I'm adding have a label based on CITY attribute I'm populating.

When I first add the feature to my layer, the text label appears as expected. However, once I pan, the label changes from the CITY attribute to appearing as 'undefined'.

The CITY attribute is present in layer, I can see it in ArcCatalog, so I know it has values.

      app.bufferLayer = new FeatureLayer(config.pathName + "/arcgis/rest/services/bufferAnalysis/FeatureServer/0" ,{
        id:"bufferLayer"}
      )

        var textColor = new Color("#FF0000");
        var cityText = new TextSymbol();
        cityText.setColor(textColor);
        cityText.font.setSize("7pt");       
        var cityLabelRenderer = new SimpleRenderer(cityText);
        cityLabelLayer = new LabelLayer({ 
          id: "cityLabels"
        });
    
        cityLabelLayer.addFeatureLayer(app.bufferLayer, cityLabelRenderer, "${CITY}");
      app.map.addLayers([featureLayer,cityLayer,app.bufferLayer,app.graphicsLayer,cityLabelLayer]);

The is based on the example Select with Feature Layer | ArcGIS API for JavaScript , but instead of just a graphic added to the map, I want to save the circle I'm generating, along with the summary statistics as a new feature in my featureLayer. It seems like my edits are getting applied, but I don't understand why the labels first appear, then disappear. Is this not a valid use of labelLayer?

Re: FeatureLayer source for LabelLayer

TracySchloss — Wed, 09 Sep 2015 20:21:58 GMT

I see what I did wrong. You have to have some outFields specified in your FeatureLayer definition or this doesn't work. I always think the default is outFields:['*'], but the default is no fields get returned.

app.bufferLayer = new FeatureLayer(config.pathName + "/arcgis/rest/services/DPS/VetComm_bufferAnalysis/FeatureServer/0" ,{

id:"bufferLayer",

outFields:['*']

}

)

topic FeatureLayer source for LabelLayer in ArcGIS JavaScript Maps SDK Questions

FeatureLayer source for LabelLayer

Re: FeatureLayer source for LabelLayer