appointment.RecurrenceRule = new WeeklyRecurrenceRule(new DateTime(2010, 1, 20), new DateTime(2010, 1, 27), WeekDays.Wednesday | WeekDays.Friday, 1);
this.radScheduler1.Appointments.Add(appointment);
It represents a similar case like yours. Please sent us a sample application so that I can help you further. You need to open a new support ticket so that you can attach files.