GEOG 863:
Web Application Development for Geospatial Professionals

4.4.3 FeatureLayer


4.4.3 FeatureLayer


  • feature geometry and attributes sent to client; rendered on client
  • features to stream to the client are often filtered using a definition expression
  • having the geometry and attributes on the client enables the implementation of popup windows
  • also supports several types of renderings (e.g., unique values, class breaks, etc.)

How do I know I’m dealing with a FeatureLayer?

  • on ArcGIS Server instances, can be created from a service labeled as either MapServer or FeatureServer
  • when dealing with a service containing multiple layers, must create the FeatureLayer from one of the service sub-layers

Class description in the SDK:

Example service:

Code sample: