In this example, i have told you how to create a directory on FTP Server using C#/VB.NET.Let's start

Namespaces required:

C#

using System.Net;
using System.IO;

VB.NET

Imports System.Net
Imports System.IO

Following is the code of create directory on the FTP Server.

C#

private void MakeDir(string dirName)
   {
       FTPSettings.IP = "DOMAIN NAME";
       FTPSettings.UserID = "USER ID";
       FTPSettings.Password = "PASSWORD";
       FtpWebRequest reqFTP = null;
       Stream ftpStream = null;
       try
       {
           reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + FTPSettings.IP + "/" + dirName));
           reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory;
           reqFTP.UseBinary = true;
           reqFTP.Credentials = new NetworkCredential(FTPSettings.UserID, FTPSettings.Password);
           FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
           ftpStream = response.GetResponseStream();
           ftpStream.Close();
           response.Close();
       }
       catch (Exception ex)
       {
           if (ftpStream != null)
           {
               ftpStream.Close();
               ftpStream.Dispose();
           }
           throw new Exception(ex.Message.ToString());
       }
   }

   public static class FTPSettings
   {
       public static string IP { get; set; }
       public static string UserID { get; set; }
       public static string Password { get; set; }
   }

VB.NET

  Private Sub MakeDir(ByVal dirName As String)
       FTPSettings.IP = "DOMAIN NAME"
       FTPSettings.UserID = "USER ID"
       FTPSettings.Password = "PASSWORD"
       Dim reqFTP As FtpWebRequest = Nothing
       Dim ftpStream As Stream = Nothing
       Try
           reqFTP = DirectCast(FtpWebRequest.Create(New Uri("ftp://" + FTPSettings.IP + "/" + dirName)), FtpWebRequest)
           reqFTP.Method = WebRequestMethods.Ftp.MakeDirectory
           reqFTP.UseBinary = True
           reqFTP.Credentials = New NetworkCredential(FTPSettings.UserID, FTPSettings.Password)
           Dim response As FtpWebResponse = DirectCast(reqFTP.GetResponse(), FtpWebResponse)
           ftpStream = response.GetResponseStream()
           ftpStream.Close()
           response.Close()
       Catch ex As Exception
           If ftpStream IsNot Nothing Then
               ftpStream.Close()
               ftpStream.Dispose()
           End If
           Throw New Exception(ex.Message.ToString())
       End Try
   End Sub

   Public NotInheritable Class FTPSettings
       Private Sub New()
       End Sub
       Public Shared Property IP() As String
           Get
               Return m_IP
           End Get
           Set(ByVal value As String)
               m_IP = Value
           End Set
       End Property
       Private Shared m_IP As String
       Public Shared Property UserID() As String
           Get
               Return m_UserID
           End Get
           Set(ByVal value As String)
               m_UserID = Value
           End Set
       End Property
       Private Shared m_UserID As String
       Public Shared Property Password() As String
           Get
               Return m_Password
           End Get
           Set(ByVal value As String)
               m_Password = Value
           End Set
       End Property
       Private Shared m_Password As String
   End Class

Download

CreateDirectory.zip.zip (1.10 kb)

You can use this function in both asp.net and Windows Form csharp/VB.Net Application.