ArcGIS Pro 2.7 API Reference Guide
MapMemberDataSourceChangingEvent Class
Members 

ArcGIS.Desktop.Mapping.Events Namespace : MapMemberDataSourceChangingEvent Class
Occurs when a layer or standalone table's datasource is about to change giving a chance to cancel.
Object Model
MapMemberDataSourceChangingEvent ClassSubscriptionToken ClassSubscriptionToken Class
Syntax
public sealed class MapMemberDataSourceChangingEvent : ArcGIS.Core.Events.AsyncPresentationEvent<MapMemberCancelEventsArgs> 
Public NotInheritable Class MapMemberDataSourceChangingEvent 
   Inherits ArcGIS.Core.Events.AsyncPresentationEvent(Of MapMemberCancelEventsArgs)
Inheritance Hierarchy

System.Object
   ArcGIS.Core.Events.EventBase
      ArcGIS.Core.Events.AsyncPresentationEvent<TPayload>
         ArcGIS.Desktop.Mapping.Events.MapMemberDataSourceChangingEvent

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

MapMemberDataSourceChangingEvent Members
ArcGIS.Desktop.Mapping.Events Namespace