检查Windows 8手机应用程序中的Internet是否已打开？

Question

我有一个Windows Phone 8申请。我需要在启动或打开应用程序之前检查设备是否具有Internet连接。

如果互联网为off，则应将用户定向到settings page至turn on the internet。

public static bool checkNetworkConnection()
{
    var ni = NetworkInterface.NetworkInterfaceType;

    bool IsConnected = false;
    if ((ni == NetworkInterfaceType.Wireless80211)|| (ni == NetworkInterfaceType.MobileBroadbandCdma)|| (ni == NetworkInterfaceType.MobileBroadbandGsm))
        IsConnected= true;
    else if (ni == NetworkInterfaceType.None)
        IsConnected= false;
    return IsConnected;
}

我尝试了这个，但它说：

NetworkInterfaceType not found in System.Net.NetworkInformation

有人可以指导我这个。

Answer 1

请尝试以下代码：

public static bool checkNetworkConnection()
{
    return NetworkInterface.GetIsNetworkAvailable();
}

使用此命名空间： using Microsoft.Phone.Net.NetworkInformation;获取网络信息。

希望这对你有所帮助。

Answer 2

尝试以下代码：

bool Connection = checkNetworkConnection()
if(Connection == false)
{ 
     // Here is ConnectionSettingTask to Go directly InternetSetting 
     ConnectionSettingsTask cst = new ConnectionSettingsTask();
     cst.ConnectionSettingsType = ConnectionSettingsType.Cellular;
     cst.Show(); 
}
public static bool checkNetworkConnection() 
{
    var ni = NetworkInterface.NetworkInterfaceType;
    bool IsConnected = false;
    if ((ni == NetworkInterfaceType.Wireless80211)|| (ni == NetworkInterfaceType.MobileBroadbandCdma)|| (ni == NetworkInterfaceType.MobileBroadbandGsm))
        IsConnected= true;
    else if (ni == NetworkInterfaceType.None)
         IsConnected= false;
    return IsConnected;
}