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UdpStatistics.UdpListeners Property

Gets the number of local endpoints that are listening for User Datagram Protocol (UDP) datagrams.

Namespace:  System.Net.NetworkInformation
Assemblies:   System (in System.dll)
  System.Net.NetworkInformation (in System.Net.NetworkInformation.dll)

public abstract int UdpListeners { get; }

Property Value

Type: System.Int32
An Int64 value that specifies the total number of sockets that are listening for UDP datagrams.

You can use the UdpClient and Socket classes to create UDP listener applications.

The following code example displays the UDP statistics for the specified Internet Protocol version.

public static void ShowUdpStatistics(NetworkInterfaceComponent version)
{
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    UdpStatistics udpStat = null;

    switch (version)
    {
        case NetworkInterfaceComponent.IPv4:
            udpStat = properties.GetUdpIPv4Statistics();
            Console.WriteLine("UDP IPv4 Statistics");
            break;
        case NetworkInterfaceComponent.IPv6:
            udpStat = properties.GetUdpIPv6Statistics();
            Console.WriteLine("UDP IPv6 Statistics");
            break;
        default:
            throw new ArgumentException("version");
        //    break;
    }
    Console.WriteLine("  Datagrams Received ...................... : {0}", 
        udpStat.DatagramsReceived);
    Console.WriteLine("  Datagrams Sent .......................... : {0}", 
        udpStat.DatagramsSent);
    Console.WriteLine("  Incoming Datagrams Discarded ............ : {0}", 
        udpStat.IncomingDatagramsDiscarded);
    Console.WriteLine("  Incoming Datagrams With Errors .......... : {0}", 
        udpStat.IncomingDatagramsWithErrors);
    Console.WriteLine("  UDP Listeners ........................... : {0}", 
        udpStat.UdpListeners);
    Console.WriteLine("");
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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