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Socket.UseOnlyOverlappedIO Property

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

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

public bool UseOnlyOverlappedIO { get; set; }

Property Value

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

ExceptionCondition
InvalidOperationException

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.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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