How to Download and Upload files in FTP?

Include the below namespaces to work with the FTP download.

using System.Net;
using System.IO;

FTP Download File:

public bool DownloadFile(string sourceFilePath,string ftpUserName,string ftpPassword)
{
string fileName = sourceFilePath.Substring((sourceFilePath.LastIndex Of('/') + 1));
FtpWebRequest ftp;
ftp = (FtpWebRequest)FtpWebRequest.Create(new Uri(sourceFilePath));
ftp.Credentials = new NetworkCredential(ftpUserName,ftpPassword);
ftp.Method = WebRequestMethods.Ftp.DownloadFile;
ftp.Timeout = (int)new TimeSpan(0, 5, 0).TotalMilliseconds;
ftp.ReadWriteTimeout = 999999;
ftp.ServicePoint.MaxIdleTime = 999999;
using (FtpWebResponse response = (FtpWebResponse)ftp.GetResponse())
{
using (Stream responseStream = response.GetResponseStream())
{
//loop to read & write to file
using (FileStream fs = new FileStream(HttpContext.Current.Server.MapPath("Dow nloadFiles") + "\\" + fileName, FileMode.Create))
{
try
{
byte[] buffer = new byte[1024];
int read = 0;
long count = 0;
do
{
read = responseStream.Read(buffer, 0, buffer.Length);
fs.Write(buffer, 0, read);
count++;
} while (!(read == 0));
responseStream.Close();
fs.Flush();
fs.Close();
return true;

}
catch (Exception)
{
fs.Close();
//delete target file as it's incomplete
//targetFI.Delete();
responseStream.Close();
response.Close();
return false;
}
}
}
}
}


FTP Upload File:

public bool UploadFile(string sourceFilePath,string ftpUserName,string ftpPassword)
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(sourceFilePath);
request.Method = WebRequestMethods.Ftp.UploadFile;

// This example assumes the FTP site uses anonymous logon.
request.Credentials = new NetworkCredential (ftpUserName, ftpPassword);

// Copy the contents of the file to the request stream.
StreamReader sourceStream = new StreamReader("testfile.txt");
byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
request.ContentLength = fileContents.Length;

Stream requestStream = request.GetRequestStream();
requestStream.Write(fileContents, 0, fileContents.Length);
requestStream.Close();

FtpWebResponse response = (FtpWebResponse)request.GetResponse();

//Upload status completed if response is not null
response.Close();
}