Le téléchargement du fichier FTP (.csv) est tronqué

Question

Ceci télécharge un fichier .csv via FTP. Le fichier est 46k sur le serveur. Quand je télécharge, il est tronqué à 44k. Je n'ai aucune idée pourquoi ... quand je vois les données dans Excel, il est coupé court. J'ai augmenté le tampon à 4096 mais pas de dés (ce n'est probablement pas le problème).

Je saisis à l'origine le code suivant et pincé à partir de: Downloading Files Using FTPWebRequest

Toutes les pensées appréciées! Merci.

private void DownloadFile(string userName, string password, string ftpSourceFilePath, string localDestinationFilePath) 
    { 
     int bytesRead = 0; 
     byte[] buffer = new byte[2048];    

     FtpWebRequest request = CreateFtpWebRequest(ftpSourceFilePath, userName, password, false); 
     request.Method = WebRequestMethods.Ftp.DownloadFile; 

     Stream reader = request.GetResponse().GetResponseStream(); 
     FileStream fileStream = new FileStream(localDestinationFilePath, FileMode.Create); 

     while (true) 
     { 
      bytesRead = reader.Read(buffer, 0, buffer.Length);        

      if (bytesRead == 0) 
       break; 

      fileStream.Write(buffer, 0, bytesRead); 
     } 
    } 

    private FtpWebRequest CreateFtpWebRequest(string ftpDirectoryPath, string userName, string password, bool keepAlive) 
    { 
     FtpWebRequest request = (FtpWebRequest)WebRequest.Create(new Uri(ftpDirectoryPath)); 

     //Set proxy to null. Under current configuration if this option is not set then the proxy that is used will get an html response from the web content gateway (firewall monitoring system) 
     request.Proxy = null; 

     request.UsePassive = true; 
     request.UseBinary = true; 
     request.KeepAlive = keepAlive; 

     request.Credentials = new NetworkCredential(userName, password); 

     return request; 
    } 

Answer 1

Essayez cette approche:

private void DownloadFile(string userName, string password, string ftpSourceFilePath, string localDestinationFilePath) 
{ 
    int Length = 2048; 
    Byte[] buffer = new Byte[Length]; 
    int bytesRead = responseStream.Read(buffer, 0, Length);  

    FtpWebRequest request = CreateFtpWebRequest(ftpSourceFilePath, userName, password, false); 
    request.Method = WebRequestMethods.Ftp.DownloadFile; 

    Stream reader = request.GetResponse().GetResponseStream(); 
    FileStream fileStream = new FileStream(localDestinationFilePath, FileMode.Create); 

    while (bytesRead > 0) 
      { 
     //if (bytesRead == 0) 
      // break; 
       bytesRead = responseStream.Read(buffer, 0, Length); 
       fileStream.Write(buffer, 0, bytesRead); 
      } 

     fileStream.Close(); 
}