ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping.Events Namespace / ElevationSurfaceLayerCollectionChangedEvent Class / Subscribe Method
The delegate that gets executed when the event is published.
When false the ArcGIS.Core.Events.CompositePresentationEvent<TPayload> will maintain a weak delegate reference to the subscriber. Using a weak delegate reference relieves the subscriber from the need to unsubscribe to enable proper garbage collection.
Version

Subscribe Method (ElevationSurfaceLayerCollectionChangedEvent)
Subscribe to the ElevationSurfaceLayerCollectionChangedEvent.
Syntax

Parameters

action
The delegate that gets executed when the event is published.
keepSubscriberAlive
When false the ArcGIS.Core.Events.CompositePresentationEvent<TPayload> will maintain a weak delegate reference to the subscriber. Using a weak delegate reference relieves the subscriber from the need to unsubscribe to enable proper garbage collection.

Return Value

A ArcGIS.Core.Events.SubscriptionToken that uniquely identifies the added subscription.
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also