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FtpWebRequest.KeepAlive Property

Gets or sets a Boolean value that specifies whether the control connection to the FTP server is closed after the request completes.

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

public bool KeepAlive { get; set; }
/** @property */
public boolean get_KeepAlive ()

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

public function get KeepAlive () : boolean

public function set KeepAlive (value : boolean)

Not applicable.

Property Value

true if the connection to the server should not be destroyed; otherwise, false. The default value is true.

Exception typeCondition

InvalidOperationException

A new value was specified for this property for a request that is already in progress.

When the KeepAlive property is set to false, the control connection is closed when you call the Close method.

Changing KeepAlive after calling the GetRequestStream, BeginGetRequestStream, GetResponse, or BeginGetResponse method causes an InvalidOperationException exception.

The following code example retrieves and displays property values for a specified FtpWebRequest object.

Console.WriteLine("Passive: {0}  Keep alive: {1}  Binary: {2} Timeout: {3}.", 
    request.UsePassive, 
    request.KeepAlive, 
    request.UseBinary,
    request.Timeout == -1 ? "none" : request.Timeout.ToString()
);

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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