Inheritance: INotifyPropertyChanging, INotifyPropertyChanged
 partial void DeleteUserEvent(UserEvent instance);
 partial void UpdateUserEvent(UserEvent instance);
		private void detach_UserEvents(UserEvent entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
 partial void InsertUserEvent(UserEvent instance);
		private void attach_UserEvents(UserEvent entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}