FTP upload, download, delete ,get files asp.net

you first need to download FtpClient.cs from here once you add this file to your project you can upload - download - delete and get files from FTP servers - To get all files from ftp:

FTPclient ftPclient = new FTPclient("XXX.XXX.X.XX", "xx-xx", "xx-xx");
foreach (FTPfileInfo ky in ftPclient.ListDirectoryDetail(""))
{
        TreeNode trParent = new TreeNode();
        trParent.Text = ky.Filename;
        trParent.Value = ky.FullName;
        trVFiles.Nodes.Add(trParent);
}

- To Upload Files

if (Fileupload1.HasFile)
{
      FTPclient ftPclient = new FTPclient("XXX.XXX.X.XX", "xx-xx", "xx-xx");                        
      ftPclient.Upload(fu_FtFile.FileContent, fu_FtFile.FileName);
}

- To Download Files:

        FTPclient ftPclient = new FTPclient("XXX.XXX.X.XX", "xx-xx", "xx-xx");            
        byte[] _downFile = ftPclient.Download(e.CommandArgument.ToString());
        string _fname = e.CommandArgument.ToString();
        Response.ContentType = "application/" + _fname.Split('.')[1];
        Response.AddHeader("Content-disposition", "attachment; filename=" + _fname);
        Response.OutputStream.Write(_downFile, 0, _downFile.Length);
        Response.End();