Loading FeatureLayer with Treeview.OnClick

[KeithAnderson]

Friends

I want to create and display a single FeatureLayer from a different endpoint each time a tree node is clicked on.

The FeatureLayer should include symbology.

I pass in the Item.url with onClick and it works on the first pass.

The next .onClick is a different item.url and it bombs because it cannot create a new FeatureLayer.

TypeError: FeatureLayer is not a constructor

Suggestion on how to structure this.

Thanks

Keith

[KenBuja · Accepted solution]

Change the name of your FeatureLayer variable to see if that makes any difference. It could be getting confused with the variable name assigned to the module "esri/layers/FeatureLayer",

  featureLayer = new FeatureLayer(item.endpointurl,
    {
        mode: FeatureLayer.MODE_ONDEMAND,
        infoTemplate: infoTemplate,
        outFields: ["*"]
    });

  featureLayer.setSelectionSymbol(fieldsSelectionSymbol);
  map.addLayer(featureLayer);

[KeithAnderson]

Thank you Ken!

Don’t I feel like a dope.

I was thinking this would destroy the previous FeatureLayer and display only the new one.

Now I have two FeatureLayers displaying.

If I put an id: on it would that overwrite it?

Suggestions?

Thanks again.

K

[KenBuja]

If you only want to show one layer at a time, then you could simply remove the old one "map.removeLayer(featureLayer)" and add in the new one. You'll get an error if you put in the same id for two different items.

[KeithAnderson]

K

Thank you so much for your services.

K