The CData ADO.NET Provider for FTP implements two ADO.NET interfaces you can use to retrieve data from FTP: FTPDataAdapter and FTPDataReader objects. Whereas FTPDataAdapter objects retrieve a single result set of all the data that matches a query, FTPDataReader objects fetch data in subset increments as needed.

Using the FTPDataReader

The FTPDataReader retrieves data faster than the FTPDataAdapter because it can retrieve data in pages. As you read data from the FTPDataReader, it periodically requests the next page of results from the data source, if required. This causes results to be returned at a faster rate. The following example selects all the columns from the Notes table:

C#

string connectionString = "RemoteHost=MyFTPServer;";

using (FTPConnection connection = new FTPConnection(connectionString)) {
  FTPCommand cmd = new FTPCommand("SELECT * FROM Notes", connection);
  
  FTPDataReader rdr = cmd.ExecuteReader();

  while (rdr.Read()) {
    Console.WriteLine(String.Format("\t{0} --> \t\t{1}", rdr["Filesize"], rdr["Filename"]));
  }
}

VB.NET

Dim connectionString As String = "RemoteHost=MyFTPServer;"

Using connection As New FTPConnection(connectionString)
  Dim cmd As New FTPCommand("SELECT * FROM Notes", connection)

  Dim rdr As FTPDataReader = cmd.ExecuteReader()

  While rdr.Read()
    Console.WriteLine([String].Format(vbTab & "{0} --> " & vbTab & vbTab & "{1}", rdr("Filesize"), rdr("Filename")))
  End While
End Using