C# code to upload file to ftp server

Introduction:

In my previous article I have explained about Auto refresh page using javascript. In this article I am going to explain about how to upload file to ftp server using c# code

Explanation:

The code uses FileInfo and FtpWebRequest classes. To use this classes include the below two namespaces in the code first.

using System.IO;

using System.Net;

Below is the code used to upload file to ftp server.

private void UploadFileToFTPServer(string filename)

{

    string ftpServerIP = "ftp.server.in/";

    string ftpUserName = "username";

    string ftpPassword = "password";

    FileInfo objFile = new FileInfo(filename);

    FtpWebRequest objFTPRequest;

    // Create FtpWebRequest object

    objFTPRequest = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + objFile.Name));

    // Set Credintials

    objFTPRequest.Credentials = new NetworkCredential(ftpUserName, ftpPassword);

    // By default KeepAlive is true, where the control connection is

    // not closed after a command is executed.

    objFTPRequest.KeepAlive = false;

    // Set the data transfer type.

    objFTPRequest.UseBinary = true;

    // Set content length

    objFTPRequest.ContentLength = objFile.Length;

    // Set request method

    objFTPRequest.Method = WebRequestMethods.Ftp.UploadFile;

    // Set buffer size

    int intBufferLength = 16 * 1024;

    byte[] objBuffer = new byte[intBufferLength];

    // Opens a file to read

    FileStream objFileStream = objFile.OpenRead();

    try

    {

        // Get Stream of the file

        Stream objStream = objFTPRequest.GetRequestStream();

        int len = 0;

        while ((len = objFileStream.Read(objBuffer, 0, intBufferLength)) != 0)

        {

            // Write file Content

            objStream.Write(objBuffer, 0, len);

         }

        objStream.Close();

        objFileStream.Close();

        Console.Write("File upload success...");

     }

    catch (Exception ex)

    {

        throw ex;

    }

}