private void SetTimeout(TimeSpan delay, Action action)
{
_timer?.Stop();
_timer = new System.Timers.Timer
{
AutoReset = false,
Interval = delay.TotalMilliseconds
};
_timer.Elapsed += (sender, e) => ApplicationDispatcher.BeginInvoke(action);
_timer.Start();
}
private void DoButton3Proc()
{
try {
ApplicationDispatcher.BeginInvoke(() => OutputText.Value = "Action 3 background.");
// continue the long operation asynchronous.
Thread.Sleep(5000);
}
finally {
BusyManager.Instance.EndAsync(Button3Action);
ApplicationDispatcher.BeginInvoke(() => OutputText.Value = "Action 3 done.");
}
}
public void NotifyCollectionChanged()
{
//OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
if (_lastDispatcherOperation != null)
{
//Pending: The operation is pending and is still in the System.Windows.Threading.Dispatcher queue.
if (_lastDispatcherOperation.Status == DispatcherOperationStatus.Pending)
{
return;
}
}
_lastDispatcherOperation = ApplicationDispatcher.BeginInvoke(DispatcherPriority.Background, OnCollectionChanged, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
}
public static void ContinueWithUIDispatcher(this Task task, Action<Task> continuationAction) {
task.ContinueWith(task1 => { ApplicationDispatcher.BeginInvoke(continuationAction, task1); });
}