Get Layer Definition Expression Activity


The Get Layer Definition Expression activity gets the definition expression used by a layer in the currently selected map.


Layer Id


Type: String | Number

The ID of the layer whose definition is of interest.

If the workflow will run in VertiGIS Studio Web, VertiGIS Studio Mobile, or Web AppBuilder, you can either set Layer Id to the ID from the layer object or to the layer name from the web map.

To run the workflow in the Geocortex Viewer for HTML5, set Layer Id to the map service ID if the service only has one layer. If the service has more than one layer, also set Sublayer Id to the layer ID. Get the map service ID and layer ID from Geocortex Essentials Manager or from the Geocortex Essentials Sites Directory.

Sublayer Id


Type: String | Number

The optional index of the sublayer whose definition is of interest.



Type: String

The layer definition expression.


For information about the ID, Display Name, and Description properties, see Properties Common to all Activities.

Connectivity Requirements

This activity works when the device has intermittent connectivity to the network.

Version Information

Supported from: Geocortex Viewer for HTML5 2.9, ArcGIS Web AppBuilder 2.4.