Subscribe Method—ArcGIS Pro

When false the CompositePresentationEvent 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. The default is false.

Subscribe to the ElementsUpdatedEvent.

Syntax

C#
Visual Basic (Declaration)

public static SubscriptionToken Subscribe( 
   Action<ElementsUpdatedEventArgs> action,
   bool keepSubscriberAlive
)

Public Shared Function Subscribe( _
   ByVal action As Action(Of ElementsUpdatedEventArgs), _
   Optional ByVal keepSubscriberAlive As Boolean _
) As SubscriptionToken

Parameters

action: The delegate that gets executed when the event is published.
keepSubscriberAlive: When false the CompositePresentationEvent 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. The default is false.

Return Value

A SubscriptionToken that uniquely identifies the added subscription.

Remarks

This includes all changes made to the element with the exception of size and positioning. The ElementsPlacementChangedEvent handles those types of changes.

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

ElementsUpdatedEvent Class
ElementsUpdatedEvent Members