UdpClient.Available Property


Gets the amount of data received from the network that is available to read.

 property int Available { int get(); };
public int Available { get; }
member this.Available : int
Public ReadOnly Property Available As Integer

Property Value


The number of bytes of data received from the network.


An error occurred while attempting to access the socket.

The Socket has been closed.


The following code example shows the use of the Available property.

static void GetAvailable( UdpClient^ u )
   // Get the number of bytes available for reading.
   Console::WriteLine(  "Available value is {0}", u->Available );
public static void GetAvailable(UdpClient u)
    // Get the number of bytes available for reading.
    Console.WriteLine("Available value is {0}",


The Available property is used to determine the amount of data queued in the network buffer for reading. If data is available, call Read to get the data. If no data is available, the Available property returns 0.

If the remote host shuts down or closes the connection, the Available property throws a SocketException.


If you receive a SocketException, use SocketException.ErrorCode to obtain the specific error code and refer to the Windows Sockets version 2 API error code documentation for a detailed description of the error.

Applies to