Automatically Determine FTP Proxy Method

Tries each of the five possible ProxyMethod settings and returns the value (1-5) of the ProxyMethod that succeeded.

Download Chilkat .NET for 2.0 Framework

Download Chilkat .NET for 1.0 / 1.1 Framework

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 = "www.example-code.com";
ftp.Username = "example-code.com";
ftp.Password = "****";

ftp.ProxyHostname = "ftp.myproxyhost.com";
ftp.ProxyPort = 21;
//  Note: Your FTP Proxy server may or may not require authentication.
ftp.ProxyUsername = "myProxyUsername";
ftp.ProxyPassword = "myProxyPassword";

//  The ProxyMethod should be an integer value between 1 and 5.
//  If you know your FTP proxy server's authentication scheme,
//  you may set it directly.  To determine the ProxyMethod,
//  call DetermineProxyMethod.  A return value of -1 indicates a failure.
//  A return value of 0 indicates that nothing worked.
//  A return value of 1-5 indicates the ProxyMethod that was
//  successful, and this should be the value used for the ProxyMethod
//  property.

int pMethod;
pMethod = ftp.DetermineProxyMethod();
textBox1.Text += Convert.ToString(pMethod) + "\r\n";

ftp.Disconnect();