作法：建立通道處理站並使用它來建立與管理通道
針對可供用戶端用來傳送與接收在服務端點之間往返之訊息的不同雙工通道類型，DuplexChannelFactory<TChannel> 類別提供了這些雙工通道的建立與管理方式。
範例
下列程式碼會顯示如何建立通道處理站，並使用它建立並管理通道。
// Construct InstanceContext to handle messages on the callback interface.
// An instance of ChatApp is created and passed to the InstanceContext.
InstanceContext site = new InstanceContext(new ChatApp());
// Create the participant with the given endpoint configuration.
// Each participant opens a duplex channel to the mesh.
// Participant is an instance of the chat application that has opened a channel to the mesh.
using (DuplexChannelFactory<IChatChannel> cf =
new DuplexChannelFactory<IChatChannel>(site,"ChatEndpoint"))
{
X509Certificate2 issuer = GetCertificate(
StoreName.CertificateAuthority,
StoreLocation.CurrentUser, "CN=" + issuerName,
X509FindType.FindBySubjectDistinguishedName);
cf.Credentials.Peer.Certificate =
GetCertificate(StoreName.My,
StoreLocation.CurrentUser,
"CN=" + member,
X509FindType.FindBySubjectDistinguishedName);
cf.Credentials.Peer.PeerAuthentication.CertificateValidationMode =
X509CertificateValidationMode.Custom;
cf.Credentials.Peer.PeerAuthentication.CustomCertificateValidator =
new IssuerBasedValidator();
using (IChatChannel participant = cf.CreateChannel())
{
// Retrieve the PeerNode associated with the participant and register for online/offline events.
// PeerNode represents a node in the mesh. Mesh is the named collection of connected nodes.
IOnlineStatus ostat = participant.GetProperty<IOnlineStatus>();
ostat.Online += new EventHandler(OnOnline);
ostat.Offline += new EventHandler(OnOffline);
Console.WriteLine("{0} is ready", member);
Console.WriteLine("Press <ENTER> to send the chat message.");
// Announce self to other participants.
participant.Join(member);
Console.ReadLine();
participant.Chat(member, "Hi there - I am chatting");
Console.WriteLine("Press <ENTER> to terminate this instance of chat.");
Console.ReadLine();
// Leave the mesh and close the client.
participant.Leave(member);
}
}