How to download file from ftp server when click on button?

Question

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When i use this code click on asp.Button then all operation correct but file not download. Please help me

What I have tried:

FtpWebRequest request1 = null;
            request1 = (FtpWebRequest)WebRequest.Create(ftpServerIP + Session["appid"] + "/" + fname);

            //Enter FTP Server credentials.
            request1.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
            request1.UsePassive = true;
            request1.UseBinary = true;
            request1.EnableSsl = false;
            request1.Method = WebRequestMethods.Ftp.DownloadFile;
            //Fetch the Response and read it into a MemoryStream object.
            FtpWebResponse response1 = (FtpWebResponse)request1.GetResponse();
            using (MemoryStream stream = new MemoryStream())
            {
                //Download the File.
                response1.GetResponseStream().CopyTo(stream);                
                Response.AddHeader("content-disposition", "attachment;filename=" + fname);
                Response.Cache.SetCacheability(HttpCacheability.NoCache);
                Response.BinaryWrite(stream.ToArray());
                Response.End();
            }

Posted 30-Aug-19 2:04am

Member 10949531

Updated 26-Mar-23 20:16pm

RickZeeland

v2

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Comments

F-ES Sitecore 30-Aug-19 8:12am

We can't run your code in your context so we don't know. Start by debugging the code so you can provide a more detailed question. Is request1 what you expect, is it a valid url with the write appid? Is response1 what you would expect? Does the CopyTo method copy the file into the stream as you'd expect? Is "stream.ToArray()" returning a binary file like you expect? Have you even googled how to write a file using BinaryWrite? Does the code that works match your code? Do you actually generate any response? Have you used a tool like fiddler to see the contents of that response? Is it as you expect?

Suvendu Shekhar Giri 31-Aug-19 0:39am

Try to narrow down your investigation, see if there is an exception and share that specific case instead of a broad scenario which difficult for us to pinpoint the issue.

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Member 15962593 · Answer 1 · 2023-03-26T20:16:00

private void Download(string file)
{
string FromLocalFile = Convert.ToString(System.Configuration.ConfigurationManager.AppSettings["FromLocalFile"].ToString());
string ToServerFile = Convert.ToString(System.Configuration.ConfigurationManager.AppSettings["ToServerFile"]).ToString();
string ftpserverIP = System.Configuration.ConfigurationManager.AppSettings["ftpserverIP"];
string username = System.Configuration.ConfigurationManager.AppSettings["username"];
string password = System.Configuration.ConfigurationManager.AppSettings["password"];
string portno = System.Configuration.ConfigurationManager.AppSettings["portno"];
string LocalDir = System.Configuration.ConfigurationManager.AppSettings["LocalDir"].ToString();
try
{
string uri = ftpserverIP + ToServerFile + "/" + file;
Uri serverUri = new Uri(uri);
if (serverUri.Scheme != Uri.UriSchemeFtp)
{
return;
}
//Ftp web request created
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpserverIP + ToServerFile + "/" + file);
request.Method = WebRequestMethods.Ftp.DownloadFile;
// FTP login credentials
request.Credentials = new NetworkCredential(username, password);
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
Program.CreateLocalDir();//calling the createLocalDir() method
string date = DateTime.Now.ToString("ddd MM.dd.yyyy");
string foldername = string.Format(file);
FileStream writeStream = new FileStream(LocalDir + @"\" + Path.Combine(date, foldername), FileMode.Create);
int Length = 2048;
Byte[] buffer = new Byte[Length];
int bytesRead = responseStream.Read(buffer, 0, Length);
while (bytesRead > 0)
{
writeStream.Write(buffer, 0, bytesRead);
bytesRead = responseStream.Read(buffer, 0, Length);
}
writeStream.Close();
response.Close();
}
catch (WebException wEx)
{
Console.WriteLine(wEx.Message, "Download Error");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message, "Download Error");
}
}