PeerWatcher.Stop Methode
Definition
Wichtig
Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.
Beenden Sie die dynamische Suche nach Peer-Apps innerhalb des drahtlosen Bereichs.
public:
virtual void Stop() = Stop;void Stop();public void Stop();function stop()Public Sub Stop ()Windows-Anforderungen
| App-Funktionen |
proximity
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Beispiele
private PeerWatcher _peerWatcher;
private bool _peerWatcherIsRunning = false;
private bool _peerFinderStarted = false;
// The list of peers discovered by the PeerWatcher.
ObservableCollection<PeerInformation> _discoveredPeers = new ObservableCollection<PeerInformation>();
void PeerFinder_StartPeerWatcher(object sender, RoutedEventArgs e)
{
if (!_peerFinderStarted)
{
// PeerFinder must be started first.
return;
}
if (_peerWatcherIsRunning)
{
// PeerWatcher is already running.
return;
}
try
{
if (_peerWatcher == null)
{
_peerWatcher = PeerFinder.CreateWatcher();
// Add PeerWatcher event handlers. Only add handlers once.
_peerWatcher.Added += PeerWatcher_Added;
_peerWatcher.Removed += PeerWatcher_Removed;
_peerWatcher.Updated += PeerWatcher_Updated;
_peerWatcher.EnumerationCompleted += PeerWatcher_EnumerationCompleted;
_peerWatcher.Stopped += PeerWatcher_Stopped;
}
// Empty the list of discovered peers.
_discoveredPeers.Clear();
// Start the PeerWatcher.
_peerWatcher.Start();
_peerWatcherIsRunning = true;
}
catch (Exception ex)
{
// Exceptions can occur if PeerWatcher.Start is called multiple times or
// PeerWatcher.Start is called the PeerWatcher is stopping.
}
}
protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
if (_peerWatcher != null)
{
// Remove event handlers.
_peerWatcher.Added -= PeerWatcher_Added;
_peerWatcher.Removed -= PeerWatcher_Removed;
_peerWatcher.Updated -= PeerWatcher_Updated;
_peerWatcher.EnumerationCompleted -= PeerWatcher_EnumerationCompleted;
_peerWatcher.Stopped -= PeerWatcher_Stopped;
_peerWatcher = null;
}
}
void PeerFinder_StopPeerWatcher(object sender, RoutedEventArgs e)
{
try
{
_peerWatcher.Stop();
}
catch (Exception ex)
{
// Handle the exception.
}
}