Category / Section
How to delete an occurrence from the recurrence appointment series in WPF Scheduler (Calendar)
4 mins read
In the WPF SfScheduler, you can delete an occurrence from the recurrence appointment series by using the RecurrenceExceptionDates property of the ScheduleAppointment.
C#
Add the appointments for the scheduler with the RecurrenceExpcetionDates property of the appointments.
public class SchedulerViewModel : INotifyPropertyChanged
{
/// <summary>
/// Gets or sets appointments
/// </summary>
public ScheduleAppointmentCollection Appointments { get; set; }
#region Methods
/// <summary>
/// Adding appointments
/// </summary>
private void AddAppointments()
{
var exceptionDate = new DateTime(2021, 06, 09);
this.Appointments = new ScheduleAppointmentCollection();
var newEvent = new ScheduleAppointment();
newEvent.Subject = "Meeting";
newEvent.StartTime = new DateTime(2021, 06, 2, 10, 0, 0);
newEvent.EndTime = new DateTime(2021, 06, 2, 11, 0, 0);
newEvent.RecurrenceRule = "FREQ=DAILY;INTERVAL=1;COUNT=10";
newEvent.RecurrenceExceptionDates = new ObservableCollection<DateTime>(){exceptionDate};
newEvent.AppointmentBackground = Brushes.Green;
this.Appointments.Add(newEvent);
}
#endregion
}
XAML
Bind the Appointments to the ItemsSource property of the Scheduler.
<Window.DataContext>
<local:SchedulerViewModel/>
</Window.DataContext>
<syncfusion:SfScheduler x:Name="Schedule"
ViewType="Week"
ItemsSource="{Binding Appointments}">
</syncfusion:SfScheduler>
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