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POError trying to use C# ftpwebrequest to ftp xml file to Zebra printer
 

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  1. POError trying to use C# ftpwebrequest to ftp xml file to Zebra printer
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    <p>I've used ZebraDesigner for xml ver2.0 to create some label templates for a Zebra 170PAX4 printer. I've successfully exported the zpl to the Zebra and I can edit and send the xml file to the Zebra using ftp in a Windows command prompt like this:<code>c:\ftp 10.161.41.212 Connected to 10.161.41.212. 220 ZBR-46688 Version 1.01.7 ready. User (10.161.41.212:(none)): 230 User logged in. ftp&gt; put c:SPver1_1.xml 200 PORT command successful. 150 Opening ASCII mode data connection for SPver1_1.xml. 226 Transfer complete. ftp: 324 bytes sent in 0.00Seconds 324000.00Kbytes/sec</code></p> <p>Now, I'm trying to used MS VS2010 and C# to do this automatically from a WinForms application. But for some reason no what I'm seem to try using the FtpWebRequest class, I also receive a error</p> <blockquote> <p>The remote server returned an error: (502) Command not implemented.</p> </blockquote> <p>From what I understand, the ftp method UploadFile is the same as STOR which is the same as the alias put. The code I'm using is shown below: </p> <pre><code>public bool PutXmlFile(CZebraPrinter printer, CDeviceContainer devices) { bool OK = true; CDevice currDevice = new CDevice(); currDevice = devices.GetDevice(this.m_devName); string ftpHost = "ftp://" + printer.m_IPAddress + "/"; string ftpPath = "E:"; Uri printerUri = new Uri(ftpHost + ftpPath); try { FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(printerUri); ftpRequest.Method = WebRequestMethods.Ftp.UploadFile; ftpRequest.KeepAlive = false; ftpRequest.UseBinary = false; ftpRequest.UsePassive = false; ftpRequest.Timeout = 5000; //milliseconds // The Zebra printer uses anonymous login ftpRequest.Credentials = new NetworkCredential("anonymous", ""); // Copy the contents of the file to the request stream. StreamReader sourceStream = new StreamReader(currDevice.m_defaultDataFile); byte[] fileContents = Encoding.ASCII.GetBytes(sourceStream.ReadToEnd()); sourceStream.Close(); Stream requestStream = ftpRequest.GetRequestStream(); requestStream.Write(fileContents, 0, fileContents.Length); requestStream.Close(); FtpWebResponse response = (FtpWebResponse)ftpRequest.GetResponse(); //Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription); //Check response response.Close(); } catch (Exception ex) { string errMessage = string.Format("An error occured trying to ftp the device xml file to the Zebra printer. \n\nReason:\n{0}", ex.Message); MessageBox.Show(errMessage, m_mfgInfoErr, MessageBoxButtons.OK, MessageBoxIcon.Error); return !OK; } return OK; } </code></pre> <p>Does anyone see what I may be doing wrong. Any ideas would be appreciated. Thanks.</p> <p>I ran the TRACE, here is the output:</p> <pre><code>System.Net Information: 0 : [4780] FtpWebRequest#14993092::.ctor(ftp://10.161.41.212/E:) System.Net Verbose: 0 : [4780] Exiting WebRequest::Create() -&gt; FtpWebRequest#14993092 System.Net Verbose: 0 : [4780] FtpWebRequest#14993092::GetRequestStream() System.Net Information: 0 : [4780] FtpWebRequest#14993092::GetRequestStream(Method=STOR.) System.Net Information: 0 : [4780] Associating FtpWebRequest#14993092 with FtpControlStream#720107 System.Net Information: 0 : [4780] FtpControlStream#720107 - Received response [220 ZBR-46688 Version 1.01.7 ready.] System.Net Information: 0 : [4780] FtpControlStream#720107 - Sending command [USER anonymous] System.Net Information: 0 : [4780] FtpControlStream#720107 - Received response [230 User logged in.] System.Net Information: 0 : [4780] FtpControlStream#720107 - Sending command [OPTS utf8 on] System.Net Information: 0 : [4780] FtpControlStream#720107 - Received response [502 Command 'OPTS' not implemented.] System.Net Information: 0 : [4780] FtpControlStream#720107 - Sending command [PWD] System.Net Information: 0 : [4780] FtpControlStream#720107 - Received response [502 Command 'PWD' not implemented.] System.Net Information: 0 : [4780] FtpWebRequest#14993092::(Releasing FTP connection#720107.) System.Net Error: 0 : [4780] Exception in the FtpWebRequest#14993092::GetRequestStream - The remote server returned an error: (502) Command not implemented. </code></pre> <p>So it looks like <strong>OPTS</strong> and <strong>PWD</strong> are the problem. Is there any way to control what is sent by FtpWebRequest or do I need a 3rd party library?</p>
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