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.NET Core C#

FTP Iterate over Files in Directory Matching ListPattern

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Uses the ListPattern property to iterate over the files in a directory matching the pattern.

Chilkat .NET Core C# Downloads

.NET Core C#
bool success = false;

// 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 = "my_login";
ftp.Password = "my_password";
ftp.Port = 21;
ftp.AuthTls = true;

success = ftp.Connect();
if (success != true) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

// Change to the "images" sub-directory located under our FTP account's home directory.
success = ftp.ChangeRemoteDir("images");
if (success != true) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

ftp.ListPattern = "*.png";

// Fetch the current remote directory contents by calling GetDirCount
int n = ftp.GetDirCount();
if (n < 0) {
    Debug.WriteLine(ftp.LastErrorText);
    return;
}

int i = 0;
string filename;
Chilkat.StringBuilder sbLocalPath = new Chilkat.StringBuilder();

while (i < n) {
    filename = ftp.GetFilename(i);
    Debug.WriteLine(filename);

    // Download this file.
    sbLocalPath.SetString("qa_output/");
    sbLocalPath.Append(filename);
    success = ftp.GetFile(filename,sbLocalPath.GetAsString());
    if (success != true) {
        Debug.WriteLine(ftp.LastErrorText);
        return;
    }

    i = i + 1;
}