Get a Remote FTP File's Last-Modified Time by Name

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Demonstrates the Chilkat Ftp2.GetLastModifiedTimeByNameStr method, which returns the last-modified time of a named item in the current remote directory as an RFC 822 date-time string. The only argument is the filename.

Background: This queries one item's modification time directly (typically via MDTM) rather than pulling and scanning a whole listing — efficient when you already know the filename and just need its timestamp, for example to decide whether a local copy is stale. The RFC 822 string includes a timezone offset, so the moment is unambiguous.

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bool success = false;

//  Demonstrates the Ftp2.GetLastModifiedTimeByNameStr method, which returns the last-modified time
//  of a named item in the current remote directory as an RFC 822 date-time string.  The only
//  argument is the filename.

Chilkat.Ftp2 ftp = new Chilkat.Ftp2();

ftp.Hostname = "ftp.example.com";
ftp.Username = "myFtpLogin";

//  Normally you would not hard-code the password in source.  You should instead obtain it
//  from an interactive prompt, environment variable, or a secrets vault.
ftp.Password = "myPassword";

success = ftp.Connect();
if (success == false) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

success = ftp.ChangeRemoteDir("public_html");
if (success == false) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

string lastModified = ftp.GetLastModifiedTimeByNameStr("report.pdf");
if (ftp.LastMethodSuccess == false) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

Debug.WriteLine("Last modified: " + lastModified);

success = ftp.Disconnect();
if (success == false) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}