Windows phone 7 判断网络连接

泰山神

　　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(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：