NetworkChange.NetworkAddressChanged Evento
Definizione
Importante
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Si verifica quando l'indirizzo IP di un'interfaccia di rete cambia.
public:
static event System::Net::NetworkInformation::NetworkAddressChangedEventHandler ^ NetworkAddressChanged;public static event System.Net.NetworkInformation.NetworkAddressChangedEventHandler NetworkAddressChanged;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;member this.NetworkAddressChanged : System.Net.NetworkInformation.NetworkAddressChangedEventHandler [<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
- Attributi
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.
