#眉標=.NET 3.5、P2P、PNRP
#副標=.NET Framework 3.5應用開發（2）
#大標=實作註冊PNRP Peer Name
#作者=文／圖	黃嘉輝

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using System.Net.PeerToPeer;
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using System.Net.PeerToPeer.Collaboration;
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public PeerName(string remotePeerName)
public PeerName(string classifier, PeerNameType peerNameType)
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public PeerNameRegistration()
public PeerNameRegistration(PeerName name, int port)
public PeerNameRegistration(PeerName name, int port, Cloud cloud)
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程式1
<Window x:Class="P2P.Window1"
 xmlns="http://schemas.microsoft.com/winfx/
  2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/
  2006/xaml" Title="P2P" Height="340"
  Width="300" Closing="Window_Closing">
 <Grid>
  <Label Height="25" HorizontalAlignment="Left"
   Margin="10,10,0,0" Name="label1"
   VerticalAlignment="Top"
   Width="70">Peer Name:</Label>
  <TextBox Height="22" Margin="80,12,10,0"
   Name="txtPeerName" VerticalAlignment="Top"/>
  <Label Height="25" HorizontalAlignment="Left"
   Margin="10,40,0,0" Name="label2"
   VerticalAlignment="Top"
   Width="70">Port:</Label>
  <TextBox Height="22" Margin="80,42,10,0"
   Name="txtPort" VerticalAlignment="Top" />
  <Button Height="30" Width="120" Margin="75,80,75,0"
   Name="btnRegister" HorizontalAlignment="Center"
   VerticalAlignment="Top"
   Click="btnRegister_Click">
    註冊PNRP Peer Name</Button>
  <ListBox Margin="10,145,10,55" Name="lstCloud"/>
  <Label Height="25" HorizontalAlignment="Left"
   Margin="10,120,0,0" Name="label3" 
   VerticalAlignment="Top"
   Width="70">PRNP Cloud:</Label>
  <Button Height="30" Width="120" Margin="75,0,75,12"
   Name="btnCloud" HorizontalAlignment="Center"
   VerticalAlignment="Bottom"
   Click="btnCloud_Click">取得PNRP Cloud</Button>
 </Grid>
</Window>
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程式2
// 建立PeerName物件
// 設定PNRP Peer Name為未受保護的名稱
PeerName peerName =
  new PeerName(txtPeerName.Text,
  PeerNameType.Unsecured);

// 以PNRP Peer Name與通訊埠建立PeerNameRegistration
peerNameRegistration =
  new PeerNameRegistration(peerName,
  Int32.Parse(txtPort.Text));

// 設定PNRP Peer Name的其他資訊
peerNameRegistration.Comment =
  "PNRP Peer Name的其他資訊";
// 設定PeerNameRegistration物件之二進位資料
peerNameRegistration.Data =
  System.Text.Encoding.UTF8.GetBytes("二進位資料");

// 設定用戶端或Peer端點目前參與的所有連結本機之PNRP Cloud
peerNameRegistration.Cloud = Cloud.AllLinkLocal;
// 設定是否自動選取IP位址和通訊埠
peerNameRegistration.UseAutoEndPointSelection =
  true;
// 將PNRP Peer Name註冊至PNRP Cloud中
peerNameRegistration.Start();
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程式3
// 取得目前所有有效的PNRP Cloud
CloudCollection clouds = Cloud.GetAvailableClouds();

if (clouds.Count > 0)
  lstCloud.Items.Clear();
else
  MessageBox.Show("No Clouds Found", "P2P",
    MessageBoxButton.OK, MessageBoxImage.Error);

foreach (Cloud cloud in clouds) {
  // 取得PNRP Cloud的名稱與網路範圍
  lstCloud.Items.Add(cloud.Name + ", " + cloud.Scope);
}
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程式4
private void Window_Closing(object sender,
  System.ComponentModel.CancelEventArgs e){
  // 自PNRP Cloud中移除PNRP Peer Name之註冊
  peerNameRegistration.Stop();
}
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