using Umbraco.Cms.Core.Events; namespace Umbraco.Cms.Core.Notifications; public class CancelableNotification : StatefulNotification, ICancelableNotification { public CancelableNotification(EventMessages messages) => Messages = messages; public EventMessages Messages { get; } public bool Cancel { get; set; } public void CancelOperation(EventMessage cancellationMessage) { Cancel = true; cancellationMessage.IsDefaultEventMessage = true; Messages.Add(cancellationMessage); } }