System.Net.Sockets Namespace ()

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Microsoft Visual Studio 2008/.NET Framework 3.5

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.NET Framework Class Library

System.Net.Sockets Namespace

The System.Net.Sockets namespace provides a managed implementation of the Windows Sockets (Winsock) interface for developers who need to tightly control access to the network.

The TcpClient, TcpListener, and UdpClient classes encapsulate the details of creating TCP and UDP connections to the Internet.

Classes

	Class	Description
	IPv6MulticastOption	Contains option values for joining an IPv6 multicast group.
	IrDAClient	Provides connection services for an infrared connection.
	IrDADeviceInfo	Provides information about remote devices connected by infrared communications.
	IrDAListener	Places a socket in a listening state to monitor infrared connections from a specified service or network address.
	LingerOption	Specifies whether a Socket will remain connected after a call to the Close or Close methods and the length of time it will remain connected, if data remains to be sent.
	MulticastOption	Contains IPAddress values used to join and drop multicast groups.
	NetworkStream	Provides the underlying stream of data for network access.
	SendPacketsElement	Represents an element in a SendPacketsElement array.
	Socket	Implements the Berkeley sockets interface.
	SocketAsyncEventArgs	Represents an asynchronous socket operation.
	SocketException	The exception that is thrown when a socket error occurs.
	TcpClient	Provides client connections for TCP network services.
	TcpListener	Listens for connections from TCP network clients.
	UdpClient	Provides User Datagram Protocol (UDP) network services.

Structures

	Structure	Description
	IPPacketInformation	Presents the packet information from a call to ReceiveMessageFrom or EndReceiveMessageFrom.
	SocketInformation	Encapsulates the information that is necessary to duplicate a Socket.

Enumerations

	Enumeration	Description
	AddressFamily	Specifies the addressing scheme that an instance of the Socket class can use.
	IOControlCode	Specifies the IO control codes supported by the IOControl method.
	IrDACharacterSet	Describes the character sets supported by the device.
	IrDAHints	Describes an enumeration of possible device types, such as Fax.
	ProtocolFamily	Specifies the type of protocol that an instance of the Socket class can use.
	ProtocolType	Specifies the protocols that the Socket class supports.
	SelectMode	Defines the polling modes for the Socket..::.Poll method.
	SocketAsyncOperation	The type of asynchronous socket operation most recently performed with this context object.
	SocketError	Defines error codes for the Socket class.
	SocketFlags	Specifies socket send and receive behaviors.
	SocketInformationOptions	Describes states for a Socket.
	SocketOptionLevel	Defines socket option levels for the Socket..::.SetSocketOption and Socket..::.GetSocketOption methods.
	SocketOptionName	Defines configuration option names.
	SocketShutdown	Defines constants that are used by the Socket..::.Shutdown method.
	SocketType	Specifies the type of socket that an instance of the Socket class represents.
	TransmitFileOptions	The TransmitFileOptions enumeration defines values used in file transfer requests.

Reference

System.Net

System.Net.Cache

System.Net.Security

Other Resources

Network Programming

Accessing the Internet Through a Proxy

Best Practices for System.Net Classes

Cache Management for Network Applications

Configuring Internet Applications

Introducing Pluggable Protocols

Internet Protocol Version 6

Network Tracing

Programming Pluggable Protocols

Requesting Data

Security in Network Programming

Socket Performance Enhancements in Version 3.5

Using Application Protocols