Calendar.Appointment.Equals C# (CSharp) Method

        public override bool Equals(object obj)
        {
            Appointment appt = obj as Appointment;

            if (appt == null)
                return false;

            if (base.Equals(appt))
                return true;

            // Check ID for efficiency
            if ((id != 0) && (appt.id != 0))
                return (id == appt.id);

            // else value comparison
            return ((title == appt.title) &&
                    (layer == appt.layer) &&
                    (group == appt.group) &&
                    (startDate == appt.startDate) &&
                    (endDate == appt.endDate) &&
                    (locked == appt.locked) &&
                    (barColor == appt.barColor) &&
                    (textColor == appt.textColor) &&
                    (allDayEvent == appt.allDayEvent));
        }