NetworkChange.NetworkAddressChanged Evento
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Se produce cuando la dirección IP de una interfaz de red 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 de evento
- Atributos
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.
