NetworkChange.NetworkAddressChanged Evento

Definición

Espacio de nombres:

System.Net.NetworkInformation

Ensamblado:

System.Net.NetworkInformation.dll

Source:

NetworkAddressChange.Unix.cs

Se produce cuando la dirección IP de una interfaz de red 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 de evento

NetworkAddressChangedEventHandler

Atributos

UnsupportedOSPlatformAttribute

Ejemplos

En el ejemplo de código siguiente se escuchan los cambios de dirección y se muestra el estado de las interfaces de red cuando se produce 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

Comentarios

La NetworkChange clase genera NetworkAddressChanged eventos cuando cambia la dirección de una interfaz de red, también denominada tarjeta de red o adaptador.

Para que un NetworkChange objeto llame a un método de control de eventos cuando se produzca un NetworkAddressChanged evento, debe asociar el método a un NetworkAddressChangedEventHandler delegado y agregar este delegado a este evento.