public sealed class ElevationSurfaceLayerCollectionChangedEvent : ArcGIS.Core.Events.CompositePresentationEvent<ElevationSurfaceLayerCollectionChangedEventArgs>
Public NotInheritable Class ElevationSurfaceLayerCollectionChangedEvent Inherits ArcGIS.Core.Events.CompositePresentationEvent(Of ElevationSurfaceLayerCollectionChangedEventArgs)