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FtpWebRequest.ServicePoint Property

Gets the ServicePoint object used to connect to the FTP server.

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

'Declaration
Public ReadOnly Property ServicePoint As ServicePoint

Property Value

Type: System.Net.ServicePoint
A ServicePoint object that can be used to customize connection behavior.

If no ServicePoint object exists, one is created for the FTP server. To set the maximum number of connections that can be open for an FTP server, set the ConnectionLimit property of the ServicePoint instance returned by this property.

The following code example retrieves the service point from a request and sets the maximum number of connections to one.


Public Shared Function ListFilesOnServer(ByVal serverUri As Uri) As Boolean
    ' The serverUri should start with the ftp:// scheme.
    If serverUri.Scheme <> Uri.UriSchemeFtp Then
        Return False
    End If
    ' Get the object used to communicate with the server.
    Dim request As FtpWebRequest = CType(WebRequest.Create(serverUri), FtpWebRequest)
    request.Method = WebRequestMethods.Ftp.ListDirectory

    ' Get the ServicePoint object used for this request, and limit it to one connection.
    ' In a real-world application you might use the default number of connections (2),
    ' or select a value that works best for your application.

    Dim sp As ServicePoint = request.ServicePoint
    Console.WriteLine("ServicePoint connections = {0}.", sp.ConnectionLimit)
    sp.ConnectionLimit = 1

    Dim response As FtpWebResponse = CType(request.GetResponse(), FtpWebResponse)

    ' The following streams are used to read the data returned from the server.
    Dim responseStream As Stream = Nothing
    Dim readStream As StreamReader = Nothing
    Try
        responseStream = response.GetResponseStream()
        readStream = New StreamReader(responseStream, Encoding.UTF8)

        If readStream IsNot Nothing Then
            ' Display the data received from the server.
            Console.WriteLine(readStream.ReadToEnd())
        End If
        Console.WriteLine("List status: {0}", response.StatusDescription)
    Finally
        If readStream IsNot Nothing Then
            readStream.Close()
        End If
        If response IsNot Nothing Then
            response.Close()
        End If
    End Try

    Return True
End Function


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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