Telerik Scheduler提醒事件

我正在使用Telerik Scheduler提醒(winform)，我需要捕捉在时间到来时启动提醒窗口的事件，我可以改变它以满足我的需求。我找遍了所有的房子，没有这样的事件。有人知道问题出在哪里吗?

我的代码

    private void Form1_Load(object sender, EventArgs e)
        {
            this.radScheduler1.Appointments.BeginUpdate();
            DateTime dtStart = DateTime.Now.AddSeconds(5);//here i ser reminder for 5sec after i lunch the program
            DateTime dtEnd = dtStart.AddHours(1);
            Appointment appointment = new Appointment(dtStart, dtEnd, "One", "This is first");
            appointment.BackgroundId = (int)AppointmentBackground.MustAttend;
            appointment.StatusId = (int)AppointmentStatus.Unavailable;
            appointment.Snoozed = TimeSpan.FromSeconds(10);
            this.radScheduler1.Appointments.Add(appointment);
}