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HttpWebRequest.Connection Property

Gets or sets the value of the Connection HTTP header.

Namespace:  System.Net
Assembly:  System (in System.dll)
member Connection : string with get, set

Property Value

Type: System.String
The value of the Connection HTTP header. The default value is a null reference (Nothing in Visual Basic).
ExceptionCondition
ArgumentException

The value of Connection is set to Keep-alive or Close.

The request sends the Connection property to the Internet resource as the Connection HTTP header. If the value of the KeepAlive property is true, the value "Keep-alive" is appended to the end of the Connection header.

To clear the Connection HTTP header, set the Connection property to a null reference (Nothing in Visual Basic).

Changing the Connection property after the request has been started by calling the GetRequestStream, BeginGetRequestStream, GetResponse, or BeginGetResponse method throws an InvalidOperationException.

NoteNote

The value for this property is stored in WebHeaderCollection. If WebHeaderCollection is set, the property value is lost.

The following code example uses the Connection property to set the value of the Connection HTTP Header.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, 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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