ArcGIS Pro 2.7 API Reference Guide
ProjectItemsChangedEvent Class
Members 

ArcGIS.Desktop.Core.Events Namespace : ProjectItemsChangedEvent Class
Occurs when a project item is added or removed
Object Model
ProjectItemsChangedEvent ClassSubscriptionToken ClassSubscriptionToken Class
Syntax
Inheritance Hierarchy

System.Object
   ArcGIS.Core.Events.EventBase
      ArcGIS.Core.Events.CompositePresentationEvent<TPayload>
         ArcGIS.Desktop.Core.Events.ProjectItemsChangedEvent

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

ProjectItemsChangedEvent Members
ArcGIS.Desktop.Core.Events Namespace