C#에서 FTP에 파일 업로드

// Path of file to be uploaded
string file_path = "Your File path ";
string PureFileName = new FileInfo(file_path).Name;
// Your Server url
string ftp_server_url = "Enter your server url";
// Name of folder in which you want to upload
// leave it empty if you want to upload to root directory/folder
string folder = "";
// combining the path
String uploadUrl = String.Format("{0}{1}/{2}", ftp_server_url, folder, PureFileName);

// username
string username = "Your Username";
// password
string password = "Your Password";

// creating ftp request
FtpWebRequest req = (FtpWebRequest)WebRequest.Create(uploadUrl);
req.Proxy = null;
req.Method = WebRequestMethods.Ftp.UploadFile;

// setting ftp credentials
req.Credentials = new NetworkCredential(username, password);
req.UseBinary = true;
req.UsePassive = true;

// copy content to request stream
byte[] data = File.ReadAllBytes(file_path);
req.ContentLength = data.Length;
Stream stream = req.GetRequestStream();
stream.Write(data, 0, data.Length);
stream.Close();
// status from ftp server
FtpWebResponse res = (FtpWebResponse)req.GetResponse();
return res.StatusDescription;