(.NET Core C#) Get FTP Directory Listing Information

.NET Core C# example showing how to get information about files and subdirectories in the current remote FTP directory.

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

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

ftp.Hostname = "ftp.example.com";
ftp.Username = "login";
ftp.Password = "password";

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

// The ListPattern property is our directory listing filter.
// The default value is "*", which includes everything.
Debug.WriteLine(ftp.ListPattern);

// To get file and sub-directory information, simply
// loop from 0 to ftp.GetDirCount() - 1
int i;
int n;
n = ftp.GetDirCount();
if (n < 0) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

if (n > 0) {
    for (i = 0; i <= n - 1; i++) {

        // Display the filename
        Debug.WriteLine(ftp.GetFilename(i));

        // Display the file size (in bytes)
        Debug.WriteLine(Convert.ToString(ftp.GetSize(i)));

        // Is this a sub-directory?
        if (ftp.GetIsDirectory(i) == true) {
            Debug.WriteLine(".. this is a sub-directory");
        }

        Debug.WriteLine("--");
    }

}

Debug.WriteLine("-----------------------------------");

// Only files and directories
// matching the ListPattern are returned.
ftp.ListPattern = "*.asp";
n = ftp.GetDirCount();
if (n < 0) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

if (n > 0) {
    for (i = 0; i <= n - 1; i++) {

        // Display the filename
        Debug.WriteLine(ftp.GetFilename(i));

        // Display the file size (in bytes)
        Debug.WriteLine(Convert.ToString(ftp.GetSize(i)));

        Debug.WriteLine("--");
    }

}

success = ftp.Disconnect();