NetworkStream Constructor (Socket, FileAccess, Boolean)


Creates a new instance of the NetworkStream class for the specified Socket with the specified access rights and the specified Socket ownership.

Namespace:   System.Net.Sockets
Assembly:  System (in System.dll)

public NetworkStream(
	Socket socket,
	FileAccess access,
	bool ownsSocket


Type: System.Net.Sockets.Socket

The Socket that the NetworkStream will use to send and receive data.

Type: System.IO.FileAccess

A bitwise combination of the FileAccess values that specifies the type of access given to the NetworkStream over the provided Socket.

Type: System.Boolean

Set to true to indicate that the NetworkStream will take ownership of the Socket; otherwise, false.

Exception Condition

The socket parameter is null.


The socket parameter is not connected.


The SocketType property of the socket parameter is not SocketType.Stream.


The socket parameter is in a nonblocking state.

The NetworkStream is created with read/write access to the specified Socket. If the value of the ownsSocket parameter is true, the NetworkStream takes ownership of the underlying Socket, and calling the Close method also closes the underlying Socket.

The access parameter sets the CanRead and CanWrite properties of the NetworkStream. If you specify Write, then the NetworkStream allows calls to the Write method. If you specify Read, then the NetworkStream allows calls to the Read method. If you specify ReadWrite, both method calls are allowed.

The following code example creates a NetworkStream with the ability to read and write to the Socket. Ownership of the Socket is given to this NetworkStream by specifying true for the ownsSocket parameter.

// Example for creating a NetworkStreams


// Create the NetworkStream for communicating with the remote host.
NetworkStream myNetworkStream;

if (networkStreamOwnsSocket){
     myNetworkStream = new NetworkStream(mySocket, FileAccess.ReadWrite, true);          
     myNetworkStream = new NetworkStream(mySocket, FileAccess.ReadWrite);     

.NET Framework
Available since 1.1
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