How to load appointments on demand in WinUI Scheduler?
The WinUI scheduler supports load appointments on-demand with a loading indicator.
C#
Use QueryAppointments to load the appointments in on-demand for the visible date range. Loading appointments in on-demand improves the loading performance when you have appointments ranging for multiple years. Start and stop the loading indicator animation before and after the appointments are loaded using the ShowBusyIndicator.
private async void OnScheduleQueryAppointments(object sender, QueryAppointmentsEventArgs e)
{
schedule.ShowBusyIndicator = true;
await Task.Delay(1000);
schedule.ItemsSource = this.GenerateSchedulerAppointments(e.VisibleDateRange);
schedule.ShowBusyIndicator = false;
}
private IEnumerable GenerateSchedulerAppointments(DateRange dateRange)
{
Random random = new Random();
int daysCount = (dateRange.ActualEndDate - dateRange.ActualStartDate).Days;
var appointments = new ObservableCollection<ScheduleAppointment>();
for (int i = 0; i < 50; i++)
{
var startTime = dateRange.ActualStartDate.AddDays(random.Next(0, daysCount + 1)).AddHours(random.Next(0, 24));
appointments.Add(new ScheduleAppointment
{
StartTime = startTime,
EndTime = startTime.AddHours(1),
Subject = subjectCollection[random.Next(0, subjectCollection.Count)],
AppointmentBackground = brush[random.Next(0, brush.Count)],
});
}
return appointments;
}
XAML
Trigger the QueryAppointments event for the WinUI Scheduler.
<Grid x:Name="grid"> <syncfusion:SfScheduler x:Name="scheduler" ViewType="Month" QueryAppointments="OnScheduleQueryAppointments" > </syncfusion:SfScheduler> </Grid>
Take a moment to pursue the documentation. You can also find the options available for the load on Demand Command in the Schedule.
Conclusion
I hope you enjoyed learning about ow to load appointments on demand in WinUI Scheduler.
You can refer to our WinUI Calendar feature tour page to know about its other groundbreaking feature representations. You can also explore our WinUI Calendar documentation to understand how to create and manipulate data.
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