UdpClient Constructor (Int32)

This constructor creates an underlying Socket and binds it to the port number from which you intend to communicate. Use this constructor if you are only interested in setting the local port number. The underlying service provider will assign the local IP address. If you pass 0 to the constructor, the underlying service provider will assign a port number.

Note
If you receive a SocketException, use SocketException.ErrorCode to obtain the specific error code. Once you have obtained this code, you can refer to the Windows Sockets version 2 API error code documentation in MSDN for a detailed description of the error.

This constructor works only with IPv4 address types.

The following example demonstrates using a local port number to create an instance of the UdpClient class.

//Creates an instance of the UdpClient class to listen on
// the default interface using a particular port.
try{
         UdpClient udpClient = new UdpClient(11000);
}  
catch (Exception e ) {
          Console.WriteLine(e.ToString());
  }

.NET Framework

.NET Framework Client Profile

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference