I am extremely impressed with the robustness of the Calendar control but am confused about how recurrence exceptions work. In a previous post, you explained how to delete an occurrence using the MarkException method. But how do you change, for example, the Subject or StartTime for a specific occurrence?

To illustrate I have reproduced the code from your recurrence tutorial below. What code would you add to change the Subject of occurrences 2 and 3 to "Meet Ethel" instead of "Meet George"?


       ' Create the initial appointment
       Dim app As New Appointment
       app.HeaderText = "Meet George"
       app.DescriptionText = "This is a sample appointment"
       app.StartTime = New DateTime(2006, 1, 10, 14, 0, 0)
       app.EndTime = New DateTime(2006, 1, 10, 16, 30, 0)
       Calendar.Schedule.Items.Add(app)

        Create the recurrences
       Dim rec As New Recurrence
       rec.Pattern = RecurrencePattern.Weekly
       rec.DaysOfWeek = DaysOfWeek.Monday Or DaysOfWeek.Wednesday
       rec.Weeks = 2
       rec.StartDate = New DateTime(2006, 1, 10)
       rec.StartHour = 14
       rec.StartMinute = 0
       rec.EndHour = 16
       rec.EndMinute = 30
       rec.RecurrenceEnd = RecurrenceEnd.Never

       app.Recurrence = rec

That makes sense. Much thanks