// Handles PeerFinder_AdvertiseButton click
void PeerFinder_StartAdvertising(object sender, RoutedEventArgs e)
{
// If PeerFinder is started, stop it, so that new properties
// selected by the user (Role/DiscoveryData) can be updated.
if (_peerFinderStarted)
{
PeerFinder.Stop();
_peerFinderStarted = false;
}
rootPage.NotifyUser("", NotifyType.ErrorMessage);
if (!_peerFinderStarted)
{
// attach the callback handler (there can only be one PeerConnectProgress handler).
PeerFinder.TriggeredConnectionStateChanged += new TypedEventHandler <object, TriggeredConnectionStateChangedEventArgs>(TriggeredConnectionStateChangedEventHandler);
// attach the incoming connection request event handler
PeerFinder.ConnectionRequested += new TypedEventHandler <object, ConnectionRequestedEventArgs>(PeerConnectionRequested);
// Set the PeerFinder.Role property
// NOTE: this has no effect on the Phone platform
if (_launchByTap)
{
PeerFinder.Role = rootPage.GetLaunchRole();
}
else
{
if (PeerFinder_SelectRole.SelectionBoxItem != null)
{
switch (PeerFinder_SelectRole.SelectionBoxItem.ToString())
{
case "Peer":
PeerFinder.Role = PeerRole.Peer;
break;
case "Host":
PeerFinder.Role = PeerRole.Host;
break;
case "Client":
PeerFinder.Role = PeerRole.Client;
break;
}
}
}
// Set DiscoveryData property if the user entered some text
// NOTE: this has no effect on the Phone platform
if ((PeerFinder_DiscoveryData.Text.Length > 0) && (PeerFinder_DiscoveryData.Text != "What's happening today?"))
{
using (var discoveryDataWriter = new Windows.Storage.Streams.DataWriter(new Windows.Storage.Streams.InMemoryRandomAccessStream()))
{
discoveryDataWriter.WriteString(PeerFinder_DiscoveryData.Text);
PeerFinder.DiscoveryData = discoveryDataWriter.DetachBuffer();
}
}
// start listening for proximate peers
PeerFinder.Start();
_peerFinderStarted = true;
ToggleAdvertiseControls(true);
ShowStartAdvertiseControls();
if (_browseConnectSupported && _triggeredConnectSupported)
{
rootPage.NotifyUser("Tap another device to connect to a peer or click Browse for Peers button.", NotifyType.StatusMessage);
PeerFinder_BrowsePeersButton.Visibility = Visibility.Visible;
}
else if (_triggeredConnectSupported)
{
rootPage.NotifyUser("Tap another device to connect to a peer.", NotifyType.StatusMessage);
}
else if (_browseConnectSupported)
{
rootPage.NotifyUser("Click Browse for Peers button.", NotifyType.StatusMessage);
PeerFinder_BrowsePeersButton.Visibility = Visibility.Visible;
}
}
}