In this article we are going to see how to fetch directory and file details from the FTP path.

Step 1: Used Namespaces:

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Web;

Step 2: Usage:

GetListDirectoryDetails ("ftp://208.43.121.51/", "Username", "Password");

Step 3: Creating FTP request by specifying file name and path:

public static FtpWebRequest CreateFTPRequest(string fullFtpPath)
{
return (FtpWebRequest)FtpWebRequest.Create(new Uri(fullFtpPath));
}

Step 4: Setting User Name and Password for FTP path:

public static NetworkCredential CreateNetworkCredentials(string ftpUserID, string
ftpPassword)
{
 return new NetworkCredential(ftpUserID, ftpPassword);
}

Step 5: Getting current response if any error occurs:

public static HttpResponse GetHttpResponse()
{
return HttpContext.Current.Response;
}

Step 6: Setting of FTP request:

public static FtpWebRequest GetFTPWebRequest(string fullFtpPath,
string ftpUserID, string ftpPassword)
{
FtpWebRequest reqFTP = CreateFTPRequest(fullFtpPath);
reqFTP.Credentials = CreateNetworkCredentials(ftpUserID, ftpPassword);
reqFTP.Method = WebRequestMethods.Ftp. ListDirectoryDetails;

reqFTP.UseBinary = true; // Specify the data transfer type.
 return reqFTP;
 }

Step 7: Used to get the list directory details as an Array:

public static string[] GetListDirectoryDetails(string fullFtpPath, string ftpUserID, string ftpPassword)
{
//Create a Ftp Web request.
 FtpWebRequest fwr = GetFTPWebRequest(fullFtpPath, ftpUserID, ftpPassword);

//Getting Response from the Request.
 WebResponse response = fwr.GetResponse();

//Used to get all the File as list with details.
 return GetFilesDetailList(response);
}

Step 8: Used to get the entire File as a list with details:

public static string[] GetFilesDetailList(WebResponse response)
{
string[] files;

try
 {
//Reading the response.
StreamReader reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
StringBuilder result = new StringBuilder();

while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}

result.Remove(result.ToString().LastIndexOf("\n"), 1);
reader.Close();
response.Close();
files = result.ToString().Split('\n');
}
catch (Exception ex)
{
files = null;
GetHttpResponse().Write(ex.Message + " Retrieving File Error");
}

return files;
}

Step 9: COPY & PASTE Code Snippet

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Web;

namespace ApplicationClassLibrary
{
class FTPDirectoryList
 {
//Used to get list directory details.
 public static string[] GetListDirectoryDetails(string fullFtpPath, string ftpUserID, string ftpPassword)
{
//Create a Ftp Web request.
 FtpWebRequest fwr = GetFTPWebRequest(fullFtpPath, ftpUserID, ftpPassword);

//Getting Response from the Request.
 WebResponse response = fwr.GetResponse();

//Used to get all the File as list with details.
 return GetFilesDetailList(response);
}

//Setting of FTP request
 public static FtpWebRequest GetFTPWebRequest(string fullFtpPath,
string ftpUserID, string ftpPassword)
{
FtpWebRequest reqFTP = CreateFTPRequest(fullFtpPath);
reqFTP.Credentials = CreateNetworkCredentials(ftpUserID, ftpPassword);
reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;

reqFTP.UseBinary = true; // Specify the data transfer type.
 return reqFTP;
}

//Creating FTP request by specifying file name and path
 public static FtpWebRequest CreateFTPRequest(string fullFtpPath)
{
return (FtpWebRequest)FtpWebRequest.Create(new Uri(fullFtpPath));
}

//Setting UserName and Password for FTP path.
 public static NetworkCredential CreateNetworkCredentials(string ftpUserID, string ftpPassword)
{
return new NetworkCredential(ftpUserID, ftpPassword);
}

//Used to get all the File as list with details.
 public static string[] GetFilesDetailList(WebResponse response)
{
string[] files;

try
 {
//Reading the response.
 StreamReader reader = new StreamReader(response.GetResponseStream());
string line = reader.ReadLine();
StringBuilder result = new StringBuilder();

while (line != null)
{
result.Append(line);
result.Append("\n");
line = reader.ReadLine();
}

result.Remove(result.ToString().LastIndexOf("\n"), 1);
reader.Close();
response.Close();
files = result.ToString().Split('\n');
}
catch (Exception ex)
{
files = null;
GetHttpResponse().Write(ex.Message + " Retrieving File Error");
}

return files;
}

//Gettting Current Response to If any error occurs.
 public static HttpResponse GetHttpResponse()
{
return HttpContext.Current.Response;
}
}
}

Thanks for reading this article. Have a nice day.