readme.md

Create feature collection layer (Portal item)

Create a feature collection layer from a portal item.

Use case

Feature collection layers are often used to hold features with mixed geometry or unstructured data. You can display feature collections stored in a Portal, which are often used for showing content from a CSV or map notes.

How to use the sample

The feature collection is loaded from the Portal item when the sample starts.

How it works

1. Create a Portal.
2. Create the PortalItem, referring to the portal and an item ID.
3. Verify that the item represents a feature collection.
4. Create a FeatureCollection from the item.
5. Create a FeatureCollectionLayer, referring to the feature collection.
6. Add the feature collection layer to the map's OperationalLayers collection.

Relevant API

• FeatureCollection
• FeatureCollectionLayer
• Portal
• PortalItem

About the data

The sample uses a sample layer depicting world populations.

Tags

collection, feature collection, feature collection layer, id, item, map notes, portal