Ftpwebrequest Ftp Download with Progressbar

Async ftp file download with progress bar

                pBar.Dispatcher.Invoke(() =>
            {
                if (GetFileSize(source) <= 0)
                    pBar.IsIndeterminate = true;
                else
                {
                    pBar.IsIndeterminate = false;
                    pBar.Maximum = GetFileSize(source);
                    pBar.Value = 0;
                }
            });
            // code...
            pBar.Dispatcher.Invoke(() =>
            {
                pBar.Value = pBar.Value + readCount;
            });

Used dispatcher to update progress bar, works flawlessly

How can we show progress bar for upload with FtpWebRequest

The easiest is to use BackgroundWorker and put your code into DoWork event handler. And report progress with BackgroundWorker.ReportProgress.

The basic idea:

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
    var ftpWebRequest = (FtpWebRequest)WebRequest.Create("ftp://example.com");
    ftpWebRequest.Method = WebRequestMethods.Ftp.UploadFile;
    using (var inputStream = File.OpenRead(fileName))
    using (var outputStream = ftpWebRequest.GetRequestStream())
    {
        var buffer = new byte[1024 * 1024];
        int totalReadBytesCount = 0;
        int readBytesCount;
        while ((readBytesCount = inputStream.Read(buffer, 0, buffer.Length)) > 0)
        {
            outputStream.Write(buffer, 0, readBytesCount);
            totalReadBytesCount += readBytesCount;
            var progress = totalReadBytesCount * 100.0 / inputStream.Length;
            backgroundWorker1.ReportProgress((int)progress);
        }
    }
}

private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
    progressBar.Value = e.ProgressPercentage;
}

Make sure WorkerReportsProgress is enabled

backgroundWorker2.WorkerReportsProgress = true;

With BackgroundWorker you can also easily implement upload cancellation.

FTP upload ProgressBar in VB.NET

I got this from an example a long time ago. The code should be fairly easy to change for your needs.

Dim clsRequest As System.Net.FtpWebRequest = _
        DirectCast(System.Net.WebRequest.Create(ServLabel.Text & TextBox1.Text), System.Net.FtpWebRequest)

    clsRequest.Credentials = New System.Net.NetworkCredential(PassLabel.Text, UserLabel.Text)
    clsRequest.Method = System.Net.WebRequestMethods.Ftp.UploadFile
    rfshTMR.Enabled = True
    Dim File() As Byte = System.IO.File.ReadAllBytes(txtFile.Text)
    Dim clsStream As System.IO.Stream = _
        clsRequest.GetRequestStream()
    clsStream.Write(File, 0, File.Length)
    For offset As Integer = 0 To File.Length Step 1024
        ToolStripProgressBar1.Value = CType(offset * ToolStripProgressBar1.Maximum / File.Length, Integer)
        Dim chunkSize As Integer = File.Length - offset - 1
        If chunkSize > 1024 Then chunkSize = 1024
        clsStream.Write(File, offset, chunkSize)
        ToolStripProgressBar1.Value = ToolStripProgressBar1.Maximum
    Next
    clsStream.Close()
    clsStream.Dispose()
    MsgBox("File Is Now In Database", MsgBoxStyle.OkOnly, "Upload Complete")

C# FtpWebRequest progress bar tooltip update with uploaded amount

Your code works for me. Assuming you run the uploadFile on a background thread, like:

private void button1_Click(object sender, EventArgs e)
{
    Task.Run(() => uploadFile());
}

See also How can we show progress bar for upload with FtpWebRequest

(though you know that link already)

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You just update the tooltip too often, so it flickers.

Downloading files using FtpWebRequest

Just figured it out:

    private void DownloadFile(string userName, string password, string ftpSourceFilePath, string localDestinationFilePath)
    {
        int bytesRead = 0;
        byte[] buffer = new byte[2048];

        FtpWebRequest request = CreateFtpWebRequest(ftpSourceFilePath, userName, password, true);
        request.Method = WebRequestMethods.Ftp.DownloadFile;

        Stream reader = request.GetResponse().GetResponseStream();
        FileStream fileStream = new FileStream(localDestinationFilePath, FileMode.Create);

        while (true)
        {
            bytesRead = reader.Read(buffer, 0, buffer.Length);

            if (bytesRead == 0)
                break;

            fileStream.Write(buffer, 0, bytesRead);
        }
        fileStream.Close();       
    }

Had to use a FileStream instead.

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