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02.04.2008 at 02:01PM PST, ID: 23136471
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6.2

How to FTP file using VB.net

Zones: Visual Studio .NET 2005, Microsoft Visual Basic.Net
I need to FTP a file i created using VB.net.I am writing a console application.
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Question Stats
Zone: Microsoft
Question Asked By: zameer21
Solution Provided By: GreenGhost
Participating Experts: 2
Solution Grade: B
Views: 101
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02.04.2008 at 02:12PM PST, ID: 20818595
fredmastro:

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02.04.2008 at 07:01PM PST, ID: 20820278

Rank: Guru

GreenGhost:

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02.05.2008 at 08:19PM PST, ID: 20829464
zameer21:

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02.05.2008 at 08:42PM PST, ID: 20829557
fredmastro:

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02.05.2008 at 08:46PM PST, ID: 20829577
zameer21:

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02.05.2008 at 11:48PM PST, ID: 20830229

Rank: Guru

GreenGhost:

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02.12.2008 at 06:54AM PST, ID: 20875218
zameer21:

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02.12.2008 at 07:30AM PST, ID: 20875624
zameer21:

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02.12.2008 at 11:13AM PST, ID: 20877724

Rank: Guru

GreenGhost:

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02.13.2008 at 08:34AM PST, ID: 20885621
zameer21:

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02.13.2008 at 04:28PM PST, ID: 20889857

Rank: Guru

GreenGhost:

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02.13.2008 at 05:23PM PST, ID: 20890135
zameer21:

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02.04.2008 at 02:12PM PST, ID: 20818595
fredmastro:
Here's a class you could download free and use it.

http://www.gotdotnet.com/Community/UserSamples/Details.aspx?SampleGuid=DD5E4A38-7F5B-45E0-9C36-64B987947C20

Download the Class.. then at the bottom you'll find the example code how to use it... I've pasted it here.  Just the example part.  You need to just add the clsFTP.vb file to your project, or use the FTP.dll in your Bin folder.

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    '
    ' Copy and paste the code below into a VB WebForm or WinForm
    '  application and then do the following:
    '
    '       1).  From within the ASP.NET or WinForm app set a
    '            reference to the FTP.dll and BitOperators.dll
    '            files.
    '       2).  At the top of the application code file 
    '            (E.g WebForm1.aspx.vb or Form1.vb) type in
    '               Imports FTP
    '       3).  Compile the application and run.
    '       4).  Have fun.
 
    'Protected Sub TestFTP()
    '    Dim ff As clsFTP
 
    '    Try
    '        '-------------------------------------------
    '        ' OPTION 1
    '        ' --------
    '        '
    '        ' Create an instance of the FTP Class.
    '        'ff = New clsFTP()
 
    '        ' Setup the appropriate properties.
    '        'ff.RemoteHost = "microsoft"
    '        'ff.RemoteUser = "ftpuser"
    '        'ff.RemotePassword = "password"
    '        '-------------------------------------------
 
    '        '-------------------------------------------
    '        ' OPTION 2
    '        ' --------
    '        '  Pass the values into the constructor 
    '        '  instead.  These can be overridden by simply
    '        '  setting the appropriate properties on the
    '        '  instance of the clsFTP Class.
    '        ff = New clsFTP("microsoft", _
    '                        ".", _
    '                        "ftpuser", _
    '                        "password", _
    '                        21)
 
    '        ' Attempt to log into the FTP Server.
    '        If (ff.Login()) Then
    '            '
    '            ' Move the to Area1\Section1\Subby1\ directory.
    '            ff.ChangeDirectory("Area1")
    '            ff.ChangeDirectory("Section1")
 
    '            'ff.CreateDirectory("Subby1")
    '            ff.ChangeDirectory("Subby1")
    '            ff.SetBinaryMode(True)
 
    '            ' Upload a file.
    '            'ff.UploadFile("d:\general\secureapps.pdf")
 
    '            ' Download a file.
    '            'ff.DownloadFile("secureapps.pdf", "d:\general\secureapps.pdf")
 
    '            ' Remove a file from the FTP Site.
    '            If (ff.DeleteFile("secureapps.pdf")) Then
    '                Response.Write("File has been removed from FTP Site")
    '                'MessageBox.Show("File has been removed from FTP Site")
    '            Else
    '                Response.Write("Unable to remove file from FTP Site.  Message from server: " & ff.MessageString & "<br>")
    '                'MessageBox.Show("Unable to remove file from FTP Site")
    '            End If
 
    '            ' Rename a file on the FTP Site.
    '            'If (ff.RenameFile("secureapps.pdf", "newapp.pdf")) Then
    '            '    Response.Write("File has been renamed")
    '            '    MessageBox.Show("File has been renamed")
    '            'End If
 
    '            'ff.ChangeDirectory("..")
    '            'If (ff.RemoveDirectory("Subby1")) Then
    '            '    Response.Write("Directory has been removed<br>")
    '            '    ' MessageBox.Show("Directory has been removed")
    '            'Else
    '            '    Response.Write("Unable to remove the directory.  Message from server: " & ff.MessageString & "<br>")
    '            '    ' MessageBox.Show("Unable to remove the directory.")
    '            'End If
    '        End If
 
    '    Catch ex As System.Exception
    '        ' ASP.NET
    '        Response.Write(ex.Message & "<BR>")
    '        Response.Write("Message from FTP Server was: " & ff.MessageString)
 
    '        ' WinForms
    '        'Messagebox.Show(ex.Message)
    '        'MessageBox.show("Message from FTP Server was: " & ff.MessageString)
    '    Finally
    '        '
    '        ' Always close down the connection to ensure that
    '        '  there are no "stray" Fido's Fetching data.  In
    '        '  other words, no stray/limbo/not-in-use FTP
    '        '  connections.
    '        ff.CloseConnection()
    '    End Try
    'End Sub
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Assisted Solution
 
02.04.2008 at 07:01PM PST, ID: 20820278

Rank: Guru

GreenGhost:
There is no need to download anything, it's already built into the framework.

You can use the UploadFile method in the WebClient class to send a file to an FTP server:

http://msdn2.microsoft.com/en-us/library/36s52zhs(VS.80).aspx

However, you don't even have to save the data to a file to upload it, you can use the UploadData method to send a byte array as a file to the FTP.
Accepted Solution
 
02.05.2008 at 08:19PM PST, ID: 20829464
zameer21:
Hi Greenhost,
i looked at the code in the link you send me,there is no place to put username and password.I need to ftp to a remote host with username and password.
 
02.05.2008 at 08:42PM PST, ID: 20829557
fredmastro:
Could just use the class I linked you too.

    '        ' Create an instance of the FTP Class.
    '        'ff = New clsFTP()
 
    '        ' Setup the appropriate properties.
    '        'ff.RemoteHost = "microsoft"
    '        'ff.RemoteUser = "ftpuser"
    '        'ff.RemotePassword = "password"

 
02.05.2008 at 08:46PM PST, ID: 20829577
zameer21:
Hi FredMastro,
I am presenlty thinking of using ur class,i need to test it.I will be only able to do it tomm or day after, as i dont have all the ftp info yet.
 
02.05.2008 at 11:48PM PST, ID: 20830229

Rank: Guru

GreenGhost:
To set the user name and password for a WebClient object, you use the Credentials property:

myWebClient.Credentials = New NetworkCredential (username, password);
 
02.12.2008 at 06:54AM PST, ID: 20875218
zameer21:
GreenGhost,
where do u specify the remote host in the code you gave me.
 
02.12.2008 at 07:30AM PST, ID: 20875624
zameer21:
i GOT IT GREENHOST,
Is there way to determine if the file was written succesfully,through code.
UploadMathod returns Byte().What is this byte() array for.
 
02.12.2008 at 11:13AM PST, ID: 20877724

Rank: Guru

GreenGhost:
The method returns the response from the server.

I'm not certain what the FTP server returns as response, but I think that it's a message like "250 File action completed". You can use the Encoding.ASCII.GetString to decode the bytes into a string.
 
02.13.2008 at 08:34AM PST, ID: 20885621
zameer21:
GreenGhost:
I can write the file to the FTP server,but byte code returned when i use encoding.ascii.getstring is blank.
I would prefer to have sucees to failure so that i can write to the log.
 
02.13.2008 at 04:28PM PST, ID: 20889857

Rank: Guru

GreenGhost:
If there is something wrong, you will get an exception.

The method that I suggested for getting the resonse is also used in the example in the documentation for the UploadFile method:

http://msdn2.microsoft.com/en-us/library/aa329789.aspx
 
02.13.2008 at 05:23PM PST, ID: 20890135
zameer21:
I tried all that i was not particluarly happy with what it returns,
But i found another solution through code that uses FTPWebclient it is better and returns a better code,if you file was transmitted.I will divide points between GreenGhost and FredMastro,I dont like to use other dll,if i could code it myself.
 
 
GreenGhost
02.13.2008 at 11:12PM PST, ID: 20891532
> code that uses FTPWebclient

Do you mean FtpWebRequest?
 
 
zameer21
02.14.2008 at 02:37PM PST, ID: 20897654
yes thats correct FTPWEbRequest
 
 
GreenGhost
02.14.2008 at 02:49PM PST, ID: 20897736
Yes, that would work too. The WebClient class is easier to use, but if you want a bit more control, the FtpWebRequest class is fine. Though it should still return the same response from the server for the same operation.
 
 
 
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