PeerWatcher.EnumerationCompleted イベント
定義
重要
一部の情報は、リリース前に大きく変更される可能性があるプレリリースされた製品に関するものです。 Microsoft は、ここに記載されている情報について、明示または黙示を問わず、一切保証しません。
スキャン操作が完了し、ワイヤレス範囲内のすべてのピア アプリが見つかった後に発生します。
// Register
event_token EnumerationCompleted(TypedEventHandler<PeerWatcher, IInspectable const&> const& handler) const;
// Revoke with event_token
void EnumerationCompleted(event_token const* cookie) const;
// Revoke with event_revoker
PeerWatcher::EnumerationCompleted_revoker EnumerationCompleted(auto_revoke_t, TypedEventHandler<PeerWatcher, IInspectable const&> const& handler) const;public event TypedEventHandler<PeerWatcher,object> EnumerationCompleted;function onEnumerationCompleted(eventArgs) { /* Your code */ }
peerWatcher.addEventListener("enumerationcompleted", onEnumerationCompleted);
peerWatcher.removeEventListener("enumerationcompleted", onEnumerationCompleted);
- or -
peerWatcher.onenumerationcompleted = onEnumerationCompleted;Public Custom Event EnumerationCompleted As TypedEventHandler(Of PeerWatcher, Object) イベントの種類
TypedEventHandler<PeerWatcher,IInspectable>
Windows の要件
| アプリの機能 |
proximity
|
注釈
EnumerationCompleted イベントは、範囲内のピア アプリを探す列挙体が完了したときに発生します。
重要
Windows Phone 8.x アプリの場合、EnumerationCompleted イベント ハンドラー内から PeerFinder.ConnectAsync を呼び出すと失敗します。 代わりに、ユーザーがピアへの接続を明示的に選択した場合など、このイベント ハンドラーの外部で呼び出します。
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;
}
}
private void PeerWatcher_EnumerationCompleted(PeerWatcher sender, object o)
{
var result = Dispatcher.RunAsync(CoreDispatcherPriority.Low, () =>
{
lock (this)
{
if (_discoveredPeers.Count == 0)
{
// No peers discovered for this enumeration.
}
}
});
}