NetworkChange.NetworkAddressChanged Evento

Definizione

Spazio dei nomi:

System.Net.NetworkInformation

Assembly:

System.Net.NetworkInformation.dll

Origine:

NetworkAddressChange.Unix.cs

Si verifica quando l'indirizzo IP di un'interfaccia di rete cambia.

public:
 static event System::Net::NetworkInformation::NetworkAddressChangedEventHandler ^ NetworkAddressChanged;

[System.Runtime.Versioning.UnsupportedOSPlatform("illumos")]
[System.Runtime.Versioning.UnsupportedOSPlatform("solaris")]
public static event System.Net.NetworkInformation.NetworkAddressChangedEventHandler? NetworkAddressChanged;

[<System.Runtime.Versioning.UnsupportedOSPlatform("illumos")>]
[<System.Runtime.Versioning.UnsupportedOSPlatform("solaris")>]
member this.NetworkAddressChanged : System.Net.NetworkInformation.NetworkAddressChangedEventHandler 

Public Shared Custom Event NetworkAddressChanged As NetworkAddressChangedEventHandler 

Tipo evento

NetworkAddressChangedEventHandler

Attributi

UnsupportedOSPlatformAttribute

Esempio

L'esempio di codice seguente ascolta le modifiche agli indirizzi e visualizza lo stato delle interfacce di rete quando si verifica un NetworkAddressChanged evento.

#using <System.dll>

using namespace System;
using namespace System::Net;
using namespace System::Net::NetworkInformation;
void AddressChangedCallback( Object^ /*sender*/, EventArgs^ /*e*/ )
{
   array<NetworkInterface^>^adapters = NetworkInterface::GetAllNetworkInterfaces();
   System::Collections::IEnumerator^ myEnum = adapters->GetEnumerator();
   while ( myEnum->MoveNext() )
   {
      NetworkInterface^ n = safe_cast<NetworkInterface^>(myEnum->Current);
      Console::WriteLine( "   {0} is {1}", n->Name, n->OperationalStatus );
   }
}

int main()
{
   NetworkChange::NetworkAddressChanged += gcnew NetworkAddressChangedEventHandler( AddressChangedCallback );
   Console::WriteLine( "Listening for address changes. Press any key to exit." );
   Console::ReadLine();
}

using System;
using System.Net;
using System.Net.NetworkInformation;

namespace Examples.Net.AddressChanges
{
    public class NetworkingExample
    {
        public static void Main()
        {
            NetworkChange.NetworkAddressChanged += new
            NetworkAddressChangedEventHandler(AddressChangedCallback);
            Console.WriteLine("Listening for address changes. Press any key to exit.");
            Console.ReadLine();
        }
        static void AddressChangedCallback(object sender, EventArgs e)
        {

            NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
            foreach(NetworkInterface n in adapters)
            {
                Console.WriteLine("   {0} is {1}", n.Name, n.OperationalStatus);
            }
        }
    }
}

Imports System.Net
Imports System.Net.NetworkInformation

Public Class NetworkingExample
    Public Shared Sub Main()
        AddHandler NetworkChange.NetworkAddressChanged, AddressOf AddressChangedCallback
        Console.WriteLine("Listening for address changes. Press any key to exit.")
        Console.ReadLine()
    End Sub
    Private Shared Sub AddressChangedCallback(ByVal sender As Object, ByVal e As EventArgs)

        Dim adapters As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
        Dim n As NetworkInterface
        For Each n In adapters
            Console.WriteLine("   {0} is {1}", n.Name, n.OperationalStatus)
        Next n
    End Sub
End Class

Commenti

La NetworkChange classe genera NetworkAddressChanged eventi quando l'indirizzo di un'interfaccia di rete, detta anche scheda di rete o scheda, cambia.

Per avere un oggetto chiama un metodo di gestione eventi quando NetworkAddressChanged si verifica un NetworkChange evento, è necessario associare il metodo a un NetworkAddressChangedEventHandler delegato e aggiungere questo delegato a questo evento.