Question

I want to build a small FTP client with FTPWebRequest, I just would like some help for connecting and grabbing header information to show the user from there I think I can figure out the rest of the application.

Answer 1

Nice article how to build a simple FTP Client in .NET you may find here http://aspalliance.com/1187_Building_a_Simple_FTP_Application_Using_C_20.all

Also i may give you some advice, for example you want to check if file is available on the FTP server, in that case you may just check its size.

Here is the function which responsible for that:

        public bool IsFtpFileExists(string remoteUri, out long remFileSize)
        {
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(BuildServerUri(remoteUri));
            FtpWebResponse response;

            request.Method = WebRequestMethods.Ftp.GetFileSize;
            request.Credentials = new NetworkCredential(Username, Password);
            try
            {
                response = (FtpWebResponse)request.GetResponse();
                remFileSize = response.ContentLength;
                return true;
            }
            catch (WebException we)
            {
                response = we.Response as FtpWebResponse;
                if (response != null && response.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
                {
                    remFileSize = 0;
                    return false;
                }
                throw;
            }
        }