รบกวนขอวิธีการทำ SFTP รับส่งไฟล์หน่อยครับผ่านแอปที่เราสร้างหน่อยครับ

using Renci.SshNet;
using System.IO;

namespace YourProjectNamespace
{
 class sftp
 {
  public static void UploadSFTPFile(string host, string username, 
  string password, string sourcefile, string destinationpath, int port)
  {
   using (SftpClient client = new SftpClient(host, port, username, password))
   {
    client.Connect();
    client.ChangeDirectory(destinationpath);
    using (FileStream fs = new FileStream(sourcefile, FileMode.Open))
    {
     client.BufferSize = 4 * 1024;
     client.UploadFile(fs, Path.GetFileName(sourcefile));
    }
   }
  }
 }
}

using System;
using System.IO;
using sftp;

string source = @"FilePath and FileName of Local File to Upload";
string destination = @"SFTP Server File Destination Folder";
string host = "SFTP Host";
string username = "User Name";
string password = "password";
int port = 22;  //Port 22 is defaulted for SFTP upload

sftp.UploadSFTPFile(host, username, password, source, destination, port);