Synchronize Remote Directory Tree

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Uploads a directory tree from the local filesystem to the FTP server. Synchronization modes include:

mode=0: Upload all files
mode=1: Upload all files that do not exist on the FTP server.
mode=2: Upload newer or non-existant files.
mode=3: Upload only newer files. If a file does not already exist on the FTP server, it is not uploaded.

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

bool success;

//  Any string unlocks the component for the 1st 30-days.
success = ftp.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    MessageBox.Show(ftp.LastErrorText);
    return;
}

ftp.Hostname = "ftp.chilkatsoft.com";
ftp.Username = "***";
ftp.Password = "***";

ftp.KeepSessionLog = true;

//  Connect and login to the FTP server.
success = ftp.Connect();
if (success != true) {
    MessageBox.Show(ftp.LastErrorText);
    return;
}

//  Set the current remote directory to the root of
//  the tree where files are uploaded.
success = ftp.ChangeRemoteDir("/abc123");
if (success != true) {
    MessageBox.Show(ftp.LastErrorText);
    return;
}

//  Recursively upload all non-existant and newer files.
int mode;
mode = 2;
success = ftp.SyncRemoteTree("c:/temp/abc123",mode);
if (success != true) {
    MessageBox.Show(ftp.LastErrorText);
    return;
}

ftp.Disconnect();

//  Display the session log.
textBox1.Text += ftp.SessionLog + "\r\n";