Dart

Determine if Connected and Logged On

See more FTP Examples

The IsConnected property indicates whether or not the FTP component has a valid TCP/IP connection (and is logged on) to the FTP server. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final ftp = CkFtp2();

  ftp.hostname = 'ftp.example.com';
  ftp.username = 'mylogin';
  ftp.password = 'mypassword';

  // Connect and login to the FTP server.
  try {
    ftp.connect();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // ...

  // At any point in an FTP session, the IsConnected property
  // can be checked to determine if the component has remained
  // connected to the FTP server.
  if (ftp.isConnected) {
    print('Connected!');
  } else {
    print('Not connected!');
  }

  // ...

  ftp.disconnect();
}