Windows phone 7 判断网络连接

类名：DeviceNetworkInformation

CellularMobileOperator获取蜂窝移动运营商的名称。

IsCellularDataEnabled获取一个值，该值指示网络是否启用了蜂窝数据。

IsCellularDataRoamingEnabled获取一个值，该值指示网络是否允许数据漫游。

IsNetworkAvailable获取一个值，该值指示网络是否可用。

IsWiFiEnabled获取一个值，该值指示网络是否启用了 Wi-Fi。

 範例程式：實作註冊監控網路狀態的變動事件與識別變動後的網路狀態。

 // Constructor
 public MainPage()
 {
 InitializeComponent();
 Initialization(false);
 }
 
 private void Initialization(bool pIsRegist)
 {
 //識別是否啟動行動網路
 tgsIcde.IsChecked = DeviceNetworkInformation.IsCellularDataEnabled;
 //識別是否啟動數據漫游
 tgsIcdr.IsChecked = DeviceNetworkInformation.IsCellularDataRoamingEnabled;
 //識別設備網路是否有網路功能
 tgsIna.IsChecked = DeviceNetworkInformation.IsNetworkAvailable;
 //識別是否啟動WiFi
 tgsIwifi.IsChecked = DeviceNetworkInformation.IsWiFiEnabled;
 
 //避免測試狀態為airplane mode
 if (DeviceNetworkInformation.CellularMobileOperator!= null)
 {
 //識別CellularMobileOperator的類型
 switch (DeviceNetworkInformation.CellularMobileOperator.ToLower())
 {
 case "chunghwa"
 tblCellularOperator.Text = "中華";
 break;
 case "taiwanmobile"
 tblCellularOperator.Text = "台哥大";
 break;
 case "fetnet"
 tblCellularOperator.Text = "遠傳";
 break;
 }
 }
 
 if (pIsRegist == false)
 {
 //註冊監控網路狀態
 DeviceNetworkInformation.NetworkAvailabilityChanged +=
 new EventHandler<NetworkNotificationEventArgs>(NetworkAvailabilityChanged);
 }
 }
 
 void NetworkAvailabilityChanged(object sender, NetworkNotificationEventArgs e)
 {
 //取得info來識別目前網路資訊
 NetworkInterfaceInfo tInfo = e.NetworkInterface;
 
 //取得網路狀態通知類型
 NetworkNotificationType tNotification = e.NotificationType;
 string tType = string.Empty;
 switch (tNotification)
 {
 case NetworkNotificationType.CharacteristicUpdate
 tType += "CharacteristicUpdate \n";
 break;
 case NetworkNotificationType.InterfaceConnected
 tType += "InterfaceConnected \n";
 break;
 case NetworkNotificationType.InterfaceDisconnected
 tType += "InterfaceDisconnected \n";
 break;
 }
 Dispatcher.BeginInvoke(() =>
 {
 tblNetworkState.Text = tType;
 Initialization(true);
 });
 }
 
 private void ApplicationBarIconButton_Click(object sender, EventArgs e)
 {
 //利用ConnectionSettingsTask修改網路狀態來測試監控網路狀態事件
 ConnectionSettingsTask tConnectionSettings = new ConnectionSettingsTask();
 tConnectionSettings.ConnectionSettingsType = ConnectionSettingsType.AirplaneMode;
 tConnectionSettings.Show();
 }

　執行結果：