Determines whether the given appointment is new and the current AppointmentItemCollection does not contain it yet.
public bool IsNew( AppointmentItem item )
Public Function IsNew( item As AppointmentItem ) As Boolean
An AppointmentItem instance that is the target appointment.
true, if the appointment is new; otherwise, false.
Call the IsNew method to check whether the target appointment is added to the AppointmentItemCollection. The IsNew method returns true for both recurrent and non-recurrent appointments .