FTP ftp = new FTP(); //Trial Mode            
//FTP ftp = new FTP("place user name here", "place license key here");
 
// set the name of the FTP server( its URL )
ftp.HostAddress = "ftp.fsz.bme.hu"; // a hungarian university. change this to your ftp server
ftp.UserName = "anonymous"; // replace with your user name
ftp.Password = "user@mail.com"; // replace with your password
 
ftp.UploadDirectoryAsync("C:\\Download", "TestDir");
 
System.Threading.Thread.Sleep(300);
 
//Gets  The name of the current directory being transferred (the source directory name) This property is filled durring asynchronous uploads/downloads for directories Do NOT show the host name in this property as part of the path For single file operations, this property is string.empty 
//This property is filled durring asynchronous uploads/downloads for directories 
//Does NOT show the host name in this property as part of the path 
//For single file operations, this property is string.empty 
System.Console.WriteLine("Current asynchronously Transferred directory is {0}", ftp.CurrentDirectoryBeingTransferred);
 
// we wait while this operation takes place
while (ftp.IsBusy == true)
{
    System.Threading.Thread.Sleep(100);
}
 
System.Console.WriteLine("TestDir has now {0} KB", ftp.GetDirectorySize("TestDir") / 1024);