How to check FTP connection?

Question

Is there a simple, fast way to check that a FTP connection (includes host, port, username and password) is valid and working? I'm using C#. Thank you.

Answer 1

try something like this:

FtpWebRequest requestDir = (FtpWebRequest)FtpWebRequest.Create("ftp://ftp.google.com");
requestDir.Credentials = new NetworkCredential("username", "password");
try
{
     WebResponse response = requestDir.GetResponse();
     //set your flag
}
catch
{
}