Csharp/C Sharp by API/System.Net.NetworkInformation/NetworkChange

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NetworkChange.NetworkAddressChanged

<source lang="csharp"> using System; using System.Net.NetworkInformation; class MainClass {

   private static void NetworkAddressChanged(object sender, EventArgs e)
   {
       Console.WriteLine("Current IP Addresses:");
       foreach (NetworkInterface ni in NetworkInterface.GetAllNetworkInterfaces())
       {
           foreach (UnicastIPAddressInformation addr in ni.GetIPProperties().UnicastAddresses) {
               Console.WriteLine("{0}", addr.Address );
           }
       }
   }
   public static void Main(string[] args)
   {
       NetworkChange.NetworkAddressChanged += NetworkAddressChanged;
   }

}


 </source>


NetworkChange.NetworkAvailabilityChanged

<source lang="csharp"> using System; using System.Net.NetworkInformation; class MainClass {

   private static void NetworkAvailabilityChanged(object sender, NetworkAvailabilityEventArgs e)
   {
       if (e.IsAvailable)
       {
           Console.WriteLine("Network Available");
       }
       else
       {
           Console.WriteLine("Network Unavailable");
       }
   }
   static void Main(string[] args)
   {
       NetworkChange.NetworkAvailabilityChanged +=  NetworkAvailabilityChanged;
   }

}


 </source>