private void OnListTimer()
{
if (ListTask == null || !ListTask.Wait(0, ListTaskCancellation.Token))
{
return;
}
ListTimer.Change(Timeout.InfiniteTimeSpan, Timeout.InfiniteTimeSpan);
IsListing = false;
IsListingCancelable = true;
CalendarList?Result = ListTaskCancellation.IsCancellationRequested ? null : ListTask.Result;
ListTask = null;
ParseCalendarListResult(Result);
}
private void StartUpdatingCalendarList()
{
SharedCalendarEntryList.Clear();
if (ApplicationName.Length == 0)
{
return;
}
if (CredentialToken == null)
{
ObtainCredentialToken(false);
}
if (CredentialToken == null)
{
return;
}
try
{
// Create Google Calendar API service.
using CalendarService service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = CredentialToken, ApplicationName = ApplicationName
});
// Define parameters of requestCalendarList.
CalendarListResource.ListRequest requestCalendarList = service.CalendarList.List();
requestCalendarList.ShowDeleted = false;
requestCalendarList.MaxResults = 10;
// List events.
ListTaskCancellation = new CancellationTokenSource();
ListTask = requestCalendarList.ExecuteAsync(ListTaskCancellation.Token);
IsListing = true;
IsListingCancelable = true;
ListTimer.Change(ListTimerStart, ListTimerInterval);
}
catch
{
}
}