wpf-devexpress-dot-xpf-dot-scheduling-dot-fetchdataeventargs-11bd493f.md
Gets or sets a task that allows you to fetch data asynchronously in the SchedulerControl.
Namespace : DevExpress.Xpf.Scheduling
Assembly : DevExpress.Xpf.Scheduling.v25.2.dll
NuGet Package : DevExpress.Wpf.Scheduling
public Task<object[]> AsyncResult { get; set; }
Public Property AsyncResult As Task(Of Object())
| Type | Description |
|---|---|
| Task<Object[]> |
A task that allows you to fetch data asynchronously.
|
The AsyncResult property is similar to the Result property, but allows you to fetch data asynchronously.
The code sample below illustrates how to use the asynchronous data fetch.
public void FetchAppointments(FetchDataEventArgs args) {
args.AsyncResult = dbContext
.AppointmentEntities
.Where(args.GetFetchExpression<AppointmentEntity>())
.ToArrayAsync<object>();
}
Public Sub FetchAppointments(ByVal args As FetchDataEventArgs)
Dim res = dbContext.AppointmentEntities.Where(args.GetFetchExpression(Of AppointmentEntity)())
args.AsyncResult = QueryableExtensions.ToArrayAsync(Of Object)(res)
End Sub
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the AsyncResult property.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
wpf-scheduler-load-data-on-demand/CS/CommonDbContext/ViewModels/SchedulingViewModel.cs#L21
public void FetchAppointments(FetchDataEventArgs args) {
args.AsyncResult = dbContext.AppointmentEntities.
Where(args.GetFetchExpression<AppointmentEntity>()).
wpf-scheduler-load-data-on-demand/VB/CommonDbContext/ViewModels/SchedulingViewModel.vb#L23
Dim res = dbContext.AppointmentEntities.Where(args.GetFetchExpression(Of AppointmentEntity)())
args.AsyncResult = QueryableExtensions.ToArrayAsync(Of Object)(res)
End Sub
See Also