How to create Exceptions

[andrea]

Hello everybody.
I urgently need to create exceptions by code. Is there a simple way to accomplish that?
How coul be possible to modify the recurrence rule?
Immediate help would be kindly appreciated.

Andrea

[andrea]

Well, at the moment I'm creating exception performing insert of appointments directly in the db by custom code, during appointmentInsert event.
I wonder if it could be possible to achieve the same in a better way.

Let me know
Thanks
Andrea

[Peter]

Hello andrea,

You can use the Exceptions.Add method of the recurrence rule to create exceptions by code. Here is a simple example of a daily recurrence rule which creates an exception at 1 pm :

 protected void Page_Load(object sender, EventArgs e)
    {
        // Create a recurrence range, that specifies a limit of 10 occurrences for the appointment.
        RecurrenceRange range = new RecurrenceRange();
        range.Start = new DateTime(2009, 3, 16, 9, 0, 0);
        range.EventDuration = new TimeSpan(1, 0, 0);
        range.MaxOccurences = 10;
        // Create a recurrence rule to repeat the appointment every 2 hours.
        HourlyRecurrenceRule rrule = new HourlyRecurrenceRule(2, range);
        //Create exception at 1 pm:
        rrule.Exceptions.Add(new DateTime(2009, 3, 16, 13, 0, 0));
        Response.Write("The appointment recurs at the following times <br/>");
        foreach (DateTime occurrence in rrule.Occurrences)
        {
            Response.Write(occurrence.ToString() + "<br/>");
        }
    }

Greetings,
Peter
the Telerik team

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