Upload file using FTP with Progress Bar

Question

Hello

I use this method (My.Computer.Network.UploadFile) to upload files by FTP.

But I want to upload file with using ProgressBar control not using its progress bar.

How can I do that?

 

Thanks

Answer 1

Penicillin,

 

This thread File Upload with a progressbar can help you very well on your project with the answer by Daniel Kuppitz:

 

Code Snippet

    Sub UpdateProgressBar(ByVal sender As Object, ByVal e As UploadProgressChangedEventArgs)

        If progressBar1.InvokeRequired Then

            progressBar1.Invoke( _

            New UploadProgressChangedEventHandler(AddressOf UpdateProgressBar), _

            sender, e)

            Exit Sub

        End If

        progressBar1.Value = CInt(progressBar1.Minimum + _

        ((progressBar1.Maximum - progressBar1.Minimum) * _

          e.ProgressPercentage) / 100)

    End Sub

 

    Private Sub btnUpload_Click( _

    ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpload.Click

 

        Dim client As New System.Net.WebClient()

        AddHandler client.UploadProgressChanged, AddressOf UpdateProgressBar

        With client

            .Credentials = New NetworkCredential( _

            "MyFTPUsername", "MyFTPPassword")

            .UploadFile("ftp://webserverurl.com/public_html/test.zip", _

            "C:\Users\Dreadypeetje\Downloads\test.zip")

        End With

    End Sub

 

    Sub UploadFile()

        Dim client As New System.Net.WebClient()

        AddHandler client.UploadProgressChanged, AddressOf UpdateProgressBar

        With client

            .Credentials = New NetworkCredential( _

            "MyFTPUsername", "MyFTPPassword")

            .UploadFile("ftp://webserverurl.com/public_html/test.zip", _

            "C:\Users\Dreadypeetje\Downloads\test.zip")

        End With

    End Sub

 

 

 

Answer 2

Hello

Look at my code:

It doesn't upload at all:

Code Snippet

Imports System.Net

 

Public Class Form1

 

Sub UpdateProgressBar(ByVal sender As Object, ByVal e As UploadProgressChangedEventArgs)

If ProgressBar1.InvokeRequired Then

ProgressBar1.Invoke(New UploadProgressChangedEventHandler(AddressOf UpdateProgressBar), sender, e)

Exit Sub

End If

ProgressBar1.Value = CInt(ProgressBar1.Minimum + ((ProgressBar1.Maximum - ProgressBar1.Minimum) * e.ProgressPercentage) / 100)

End Sub

 

Private Sub btnUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

BackgroundWorker1.RunWorkerAsync()

End Sub

 

Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork

Dim client As New System.Net.WebClient()

AddHandler client.UploadProgressChanged, AddressOf UpdateProgressBar

With client

.Credentials = New NetworkCredential("username", "password")

.UploadFileAsync(New Uri("ftp://ftp.server.com/www/test.zip"), "D:\test.zip")

End With

End Sub

 

Private Sub BackgroundWorker1_RunWorkerCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles BackgroundWorker1.RunWorkerCompleted

MsgBox("Done")

End Sub

End Class

 

 

What's wrong?

Thanks

Answer 3

Penicillin,

 

Thanks for the reply. How is your problem going?

 

Since the method cannot help you to upload the files with ProgressBar control, could you please provide the specific information on the error message or exceptions of using this UpdateProcessBar method?

 

You can also take a look at the System.Net.WebClient.UploadFileAsync that iploads the specified local file to the specified resource using POST method and the related overloads methods with the different parameters.

 

In addition, please make sure the Uri instance is correct. The System.Uri Class in MSDN shows you the correct way to use. The article How to: Upload Files with FTP and Simple FTP Upload in C# w Free FTP DLL provides you with more examples.

 

Hope that can help you.

Answer 4

I used this code:

Code Snippet

Imports System.Net

Public Class Form1

 

Sub UpdateProgressBar(ByVal sender As Object, ByVal e As UploadProgressChangedEventArgs)

If ProgressBar1.InvokeRequired Then

ProgressBar1.Invoke(New UploadProgressChangedEventHandler(AddressOf UpdateProgressBar), sender, e)

Exit Sub

End If

ProgressBar1.Value = CInt(ProgressBar1.Minimum + ((ProgressBar1.Maximum - ProgressBar1.Minimum) * e.ProgressPercentage) / 100)

End Sub

 

Private Sub btnUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

BackgroundWorker1.RunWorkerAsync()

End Sub

 

Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork

Dim client As New System.Net.WebClient()

AddHandler client.UploadProgressChanged, AddressOf UpdateProgressBar

With client

.Credentials = New NetworkCredential("username", "pass")

.UploadFileAsync(New Uri("ftp://ftp.server.com/www/file.zip"), "D:\file.zip")

End With

End Sub

 

Private Sub BackgroundWorker1_RunWorkerCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles BackgroundWorker1.RunWorkerCompleted

MsgBox("Done")

End Sub

End Class

 

 

After pressing button, I got message "Done", but the file wasn't uploaded, so the progressbar isn't moving.

What's wrong?

 

Thanks

Answer 5

Penicillin,

 

1. Please make sure you have the access to upload files on to ftp.server.com/www with the correct login account.

 

2. Please try to upload the file manually without the program, in order to make clear what cause the problem.

 

3. It seems that the project runs well on your machine, however, the result is unexpected. In this case, it is difficult to find out the mistake from Visual Studio debug mode. You can try to use other tools such as FileMon, WinDbg to check the procedure of your source code execution.

 

If there is any further question, please feel free to reply.

Answer 6

Bruno Yu - MSFT wrote:

Penicillin,   1. Please make sure you have the access to upload files on to ftp.server.com/www with the correct login account.   2. Please try to upload the file manually without the program, in order to make clear what cause the problem.   3. It seems that the project runs well on your machine, however, the result is unexpected. In this case, it is difficult to find out the mistake from Visual Studio debug mode. You can try to use other tools such as FileMon, WinDbg to check the procedure of your source code execution.   If there is any further question, please feel free to reply.

1- Yes, I'm sure that ftp.server.com/www is correct address, username and password are too.

2- I did and I could successfully.

3- I have Vista so I can't run FileMon, but I didn't know what to download in WinDbg site.

Answer 7

Penicillin

 

You can download the WinDbg tool in the link below:

 

http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx 

 

The article from Code Project can help you with this issue:

 

Windows Debuggers: Part 1: A WinDbg Tutorial

http://www.codeproject.com/debug/windbg_part1.asp

 

 

Answer 8

Bruno Yu - MSFT wrote:

Penicillin   You can download the WinDbg tool in the link below:   http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx    The article from Code Project can help you with this issue:   Windows Debuggers: Part 1: A WinDbg Tutorial http://www.codeproject.com/debug/windbg_part1.asp

Hi

I installed WinDbg.

But I didn't know how to work, and what it's gonna help me to fix my project?

Answer 9

Penicillin,

 

WindDbg is the debug tool just like the Visual Studio Debugger used in your development. Since the file cannot uploaded, you can use WinDbg to watch the detailed information on the execution of your project, or set some break points during the debug procedure, in order to make clear why the related method cannot upload the file and what happens when the related upload method executes in CLR and even in operating system level.

 

There are many commands in using WinDbg tool, in my opinion, the best instruction is the Debugging Help document after you install the tool.

Answer 10

I tried the code, and it did work in the sense that the file uploaded to the ftp server correctly. However, the progress bar did not update at all. Can someone help me fix the problem?

Imports System.Net

Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Sub UpdateProgressBar(ByVal sender As Object, ByVal e As UploadProgressChangedEventArgs)
        If ProgressBar1.InvokeRequired Then
            ProgressBar1.Invoke(New UploadProgressChangedEventHandler(AddressOf UpdateProgressBar), sender, e)
            Exit Sub
        End If
        ProgressBar1.Value = CInt(ProgressBar1.Minimum + _
        ((ProgressBar1.Maximum - ProgressBar1.Minimum) * _
          e.ProgressPercentage) / 100)
    End Sub

    Private Sub btnUpload_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpload.Click
        Label1.Text = "Uploading now..."
        Label1.Update()

        Dim client As New System.Net.WebClient()
        AddHandler client.UploadProgressChanged, AddressOf UpdateProgressBar
        With client
            .Credentials = New NetworkCredential( _
            "[e-mail]", "mypassword")
            .UploadFile("ftp://myserver.in/header.jpg", "C:\Users\MyUsername\Desktop\header.jpg")
        End With
        Label1.Text = "Done!"
        Label1.Update()

    End Sub

    Sub UploadFile()
        Dim client As New System.Net.WebClient()
        AddHandler client.UploadProgressChanged, AddressOf UpdateProgressBar
        With client
            .Credentials = New NetworkCredential( _
            "[e-mail]", "mypassword")
            .UploadFile("ftp://myserver.in/header.jpg", _
            "C:\Users\MyUsername\Desktop\header.jpg")
        End With
    End Sub

    Private Sub ProgressBar1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ProgressBar1.Click

    End Sub
End Class

P.S: I know the thread is 4 years old. But nothing else that I found matches this problem closely.

Answer 11

Were you able to find a resolve to this?