我们的应用程序使用RSS从互联网上下载数据,但在连接3G的机器上遇到连接问题。我们想检测3G,EDGE,GPRS连接,以便我们可以更改应用程序行为,显示警告或连接状态。
如何做到这一点?
答案 0 :(得分:2)
System.Net.NetworkInformation
命名空间中的NetworkInterface
类应该对您有用(更具体地说,GetAllNetworkInterfaces
方法。链接的MSDN页面上显示了一个示例,演示如何获取有关每个网络接口的类型,地址,操作状态和其他信息。
MSDN缩减版示例:
public static void ShowNetworkInterfaces()
{
IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
Console.WriteLine("Interface information for {0}.{1} ",
computerProperties.HostName, computerProperties.DomainName);
if (nics == null || nics.Length < 1)
{
Console.WriteLine(" No network interfaces found.");
return;
}
Console.WriteLine(" Number of interfaces .................... : {0}", nics.Length);
foreach (NetworkInterface adapter in nics)
{
IPInterfaceProperties properties = adapter.GetIPProperties();
Console.WriteLine();
Console.WriteLine(adapter.Description);
Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length,'='));
Console.WriteLine(" Interface type .......................... : {0}", adapter.NetworkInterfaceType);
Console.WriteLine(" Physical Address ........................ : {0}",
adapter.GetPhysicalAddress().ToString());
Console.WriteLine(" Operational status ...................... : {0}",
adapter.OperationalStatus);
Console.WriteLine();
}
}