Register Method—ArcGIS Pro

Subscribes a delegate to an event that will be published on the publisher thread. RegisteredPresentationEvent<TSubscriptionParam,TPayload> will maintain a to the target of the supplied delegate.

Syntax

C#
Visual Basic (Declaration)

protected internal SubscriptionToken Register( 
   TSubscriptionParam param,
   Func<TPayload,Task> action,
   bool keepSubscriberAlive
)

Protected Friend Function Register( _
   ByVal param As TSubscriptionParam, _
   ByVal action As Func(Of TPayload,Task), _
   Optional ByVal keepSubscriberAlive As Boolean _
) As SubscriptionToken

Parameters

param: The type of the parameter passed to subscribe
action: The delegate that gets executed when the event is published.
keepSubscriberAlive: Set to true to maintain a strong reference

Return Value

A SubscriptionToken that uniquely identifies the added subscription.

Remarks

The RegisteredPresentationEvent collection is thread-safe.

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

RegisteredPresentationEvent<TSubscriptionParam,TPayload> Class
RegisteredPresentationEvent<TSubscriptionParam,TPayload> Members
System.WeakReference