Download Multiple FTP Files by Wildcard (MGET)

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Demonstrates the Chilkat Ftp2.MGetFiles method, which downloads files in the current remote directory matching a pattern into a local directory. The first argument is the remote pattern and the second is the local directory. It returns the number of files downloaded, or -1 on failure.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is FTP's mget: fetch everything matching a wildcard in one call rather than looping yourself. It operates on the current remote directory — hence the ChangeRemoteDir first — and does not descend into subdirectories; use DownloadTree for recursive transfers. The count return lets you confirm how many matched, with -1 signaling an outright failure to check separately from a legitimate zero.

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bool success = false;

//  Demonstrates the Ftp2.MGetFiles method, which downloads files in the current remote directory
//  matching a pattern into a local directory.  The 1st argument is the remote pattern and the 2nd
//  is the local directory.  It returns the number of files downloaded, or -1 on failure.

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;
}

//  Download all .html files from the current remote directory.  Subdirectories are not traversed.
int numDownloaded = ftp.MGetFiles("*.html","qa_output/site");
if (numDownloaded < 0) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

Debug.WriteLine("Downloaded " + Convert.ToString(numDownloaded) + " files.");

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