I am uploading files to ftp using FtpWebRequest
. I need to show the status that how much is done.
So far my code is:
public void Upload(string filename, string url)
{
FileInfo fileInf = new FileInfo(filename);
string uri = "ftp://" + url + "/" + fileInf.Name;
FtpWebRequest reqFTP;
//string uri = "ftp://" + Host + "/public_html/testing/blogtest/" + fileInf.Name;
// Create FtpWebRequest object from the Uri provided
reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(uri));
// Provide the WebPermission Credintials
reqFTP.Credentials = new NetworkCredential(Username, Password);
// By default KeepAlive is true, where the control connection is not closed
// after a command is executed.
reqFTP.KeepAlive = false;
//reqFTP.UsePassive = true;
// Specify the command to be executed.
reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
// Specify the data transfer type.
reqFTP.UseBinary = true;
// Notify the server about the size of the uploaded file
reqFTP.ContentLength = fileInf.Length;
// The buffer size is set to 2kb
int buffLength = 2048;
byte[] buff = new byte[buffLength];
int contentLen;
// Opens a file stream (System.IO.FileStream) to read the file to be uploaded
FileStream fs = fileInf.OpenRead();
// Stream to which the file to be upload is written
Stream strm = reqFTP.GetRequestStream();
// Read from the file stream 2kb at a time
contentLen = fs.Read(buff, 0, buffLength);
// Till Stream content ends
while (contentLen != 0)
{
// Write Content from the file stream to the FTP Upload Stream
strm.Write(buff, 0, contentLen);
contentLen = fs.Read(buff, 0, buffLength);
}
// Close the file stream and the Request Stream
strm.Close();
fs.Close();
}
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.