var sessionOptions = new SessionOptions
{
    Protocol = Protocol.Ftp,
    HostName = "ftp.hostname.com",
    PortNumber = 21,
    UserName = "ABC@ftp.hostname.com",
    Password = "Test12"
};
try
{
    using (var session = new Session())
    {
        session.Open(sessionOptions);
 
        var transferOptions = new TransferOptions
        {
            TransferMode = TransferMode.Binary
        };
 
        var transferResult = session.GetFiles("/test-destination/*.*",@"C:\test\",
            false, transferOptions);
 
        transferResult.Check();
 
        foreach (TransferEventArgs transfer in transferResult.Transfers)
        {
            Console.WriteLine("Uploaded file: " + transfer.FileName);
        }
    }
 
}
catch (Exception ex)
{
    return false;
}