Socket.UseOnlyOverlappedIO Property

Note: This property is new in the .NET Framework version 2.0.

Specifies whether the socket should only use Overlapped I/O mode.

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

property bool UseOnlyOverlappedIO {
	bool get ();
	void set (bool value);
/** @property */
public boolean get_UseOnlyOverlappedIO ()

/** @property */
public void set_UseOnlyOverlappedIO (boolean value)

public function get UseOnlyOverlappedIO () : boolean

public function set UseOnlyOverlappedIO (value : boolean)

Property Value

true if the Socket uses only overlapped I/O; otherwise, false. The default is false.

Exception typeCondition


The socket has been bound to a completion port.

Set this property to true for a Socket you intend to call DuplicateAndClose. Otherwise, the Framework may assign a completion port to the socket, which would prohibit the use of DuplicateAndClose.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0