how to upload file using FTP? how to do in c# .net

Here's the complete code to upload to an FTP site:

using System;

using System.Collections.Generic;

using System.Net;

using System.IO;

namespace SampleApplication

{

public class FTPFileUploader

{

private string host;

private string user;

private string pass;

private string connType;

private bool useBinary;

private bool usePassive;

public FTPFileUploader(string host, string user, string password, string connectionType)

{

this.user = user;

this.pass = password;

this.connType = connectionType.ToLower();

if (this.connType == "ftp")

{

this.host = "ftp://" + host + "/";

}

else

{

this.host = host;

}

useBinary = false;

usePassive = false;

}

public bool Put(string fileToUpload, string uploadFile)

{

bool result = false;

try

{

if (connType == "ftp")

{

byte[] buffer = new byte[1024]; //in chuncks of 1024

int bytesRead;

var request = FtpWebRequest.Create(host + uploadFile) as FtpWebRequest;

request.Method = WebRequestMethods.Ftp.UploadFile;

request.UsePassive = usePassive;

request.UseBinary = useBinary;

request.KeepAlive = true;

request.Timeout = 60 * 1000 * 5; // five minutes

request.Credentials = new NetworkCredential(user, pass);

Stream responseStream = request.GetRequestStream();

FileStream fileUploading = File.OpenRead(fileToUpload);

while ((bytesRead = fileUploading.Read(buffer, 0, buffer.Length)) != 0)

{

responseStream.Write(buffer, 0, bytesRead);

}

responseStream.Close();

fileUploading.Close();

}

result = true;

}

catch(Exception ex)

{

throw new FileTransferClientException("Failure in FileTransferClient.Put(string fileToUpload, uploadFile)", ex);

}

return result;

}

public bool Put(string[] files, string dir)

{

bool result = false;

try

{

if (connType == "ftp")

{

int lastIndex = 0;

foreach (string file in files)

{

lastIndex = file.LastIndexOf('\\');

if (lastIndex >= file.Length || lastIndex < 0)

{

lastIndex = 0;

}

string fileName = file.Substring(lastIndex);

if(!Put(file, dir + fileName))

{

//how to handle some file exceptions

}

result = true;

}

catch(Exception ex)

{

throw new FileTransferClientException("Failure in FileTransferClient.Put(string[] files, string dir)", ex);

}

return result;

}

public bool MakeDirectory(string path)

{

bool result = false;

try

{

if (connType == "ftp")

{

var request = FtpWebRequest.Create(host + path) as FtpWebRequest;

request.Method = WebRequestMethods.Ftp.MakeDirectory;

request.UsePassive = usePassive;

request.UseBinary = useBinary;

request.KeepAlive = true;

request.Timeout = 30 * 1000; // half minute

request.Credentials = new NetworkCredential(user, pass);

request.GetResponse().Close();

}

else if (connType == "sftp")

{

var sftp = new Sftp(host, user, pass);

sftp.Connect();

sftp.Mkdir(path);

sftp.Close();

}

result = true;

}

catch (Exception ex)

{

throw new FileTransferClientException("FileTransferClient.MakeDirectory(string path)", ex);

}

return result;

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Jonathan Ng12y ago
That would be as simple as the following code using this .NET FTP library.:

using System;
using ComponentPro.Net;

...

// Create a new instance.
Ftp client = new Ftp();

// Connect to the FTP server.
client.Connect("localhost");

// Authenticate.
client.Authenticate("test", "test");

// ...

// Upload local file 'c:\test.dat' to '/test.dat'.
client.UploadFile("c:\\test.dat", "/test.dat");

// ...

// Disconnect.
client.Disconnect();
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Amit Choudhary14y ago
Here's the complete code to upload to an FTP site:

using System;
using System.Collections.Generic;
using System.Net;
using System.IO;

namespace SampleApplication
{
public class FTPFileUploader
{
private string host;
private string user;
private string pass;
private string connType;
private bool useBinary;
private bool usePassive;
public FTPFileUploader(string host, string user, string password, string connectionType)
{
this.user = user;
this.pass = password;
this.connType = connectionType.ToLower();
if (this.connType == "ftp")
{
this.host = "ftp://" + host + "/";
}
else
{
this.host = host;
}
useBinary = false;
usePassive = false;
}

public bool Put(string fileToUpload, string uploadFile)
{
bool result = false;

try
{
if (connType == "ftp")
{
byte[] buffer = new byte[1024]; //in chuncks of 1024
int bytesRead;

var request = FtpWebRequest.Create(host + uploadFile) as FtpWebRequest;
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UsePassive = usePassive;
request.UseBinary = useBinary;
request.KeepAlive = true;
request.Timeout = 60 * 1000 * 5; // five minutes
request.Credentials = new NetworkCredential(user, pass);
Stream responseStream = request.GetRequestStream();
FileStream fileUploading = File.OpenRead(fileToUpload);

while ((bytesRead = fileUploading.Read(buffer, 0, buffer.Length)) != 0)
{
responseStream.Write(buffer, 0, bytesRead);
}
responseStream.Close();
fileUploading.Close();
}
result = true;
}
catch(Exception ex)
{
throw new FileTransferClientException("Failure in FileTransferClient.Put(string fileToUpload, uploadFile)", ex);
}
return result;
}

public bool Put(string[] files, string dir)
{
bool result = false;

try
{
if (connType == "ftp")
{
int lastIndex = 0;
foreach (string file in files)
{
lastIndex = file.LastIndexOf('\\');
if (lastIndex >= file.Length || lastIndex < 0)
{
lastIndex = 0;
}
string fileName = file.Substring(lastIndex);
if(!Put(file, dir + fileName))
{
//how to handle some file exceptions
}
}
}
result = true;
}
catch(Exception ex)
{
throw new FileTransferClientException("Failure in FileTransferClient.Put(string[] files, string dir)", ex);
}
return result;
}

public bool MakeDirectory(string path)
{
bool result = false;

try
{
if (connType == "ftp")
{
var request = FtpWebRequest.Create(host + path) as FtpWebRequest;
request.Method = WebRequestMethods.Ftp.MakeDirectory;
request.UsePassive = usePassive;
request.UseBinary = useBinary;
request.KeepAlive = true;
request.Timeout = 30 * 1000; // half minute
request.Credentials = new NetworkCredential(user, pass);
request.GetResponse().Close();
}
else if (connType == "sftp")
{
var sftp = new Sftp(host, user, pass);
sftp.Connect();
sftp.Mkdir(path);
sftp.Close();
}

result = true;
}
catch (Exception ex)
{
throw new FileTransferClientException("FileTransferClient.MakeDirectory(string path)", ex);
}

return result;
}

}
}
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