System.Object
   Dart.Ftp.Features
   Dart.Ftp.License
   Dart.Ftp.ListEntry
   Dart.Ftp.ListProgress
   Dart.Ftp.Proxy
   Dart.Ftp.RemoveResult
      Dart.Ftp.CopyResult
   Dart.Ftp.Response
   Dart.Ftp.Security
      Dart.Ftp.ClientSecurity
         Dart.Ftp.FtpSecurity
   Dart.Ftp.Segment
      Dart.Ftp.Data
         Dart.Ftp.Datagram
   Dart.Ftp.Session
      Dart.Ftp.TcpSession
         Dart.Ftp.FtpSession
   Dart.Ftp.SocketOption
      Dart.Ftp.TcpSocketOption
   Dart.Ftp.UnixPath
   System.Collections.Generic.List<T>
      Dart.Ftp.Listing
   System.Collections.Specialized.StringCollection
      Dart.Ftp.AsciiExtensions
   System.EventArgs
      Dart.Ftp.BaseEventArgs
      Dart.Ftp.ErrorEventArgs
      Dart.Ftp.ProgressEventArgs
      Dart.Ftp.UserStateEventArgs
         Dart.Ftp.CopyEventArgs
         Dart.Ftp.DataEventArgs
         Dart.Ftp.ListingEventArgs
   System.Exception
      Dart.Ftp.DartLicenseException
      System.ApplicationException
         Dart.Ftp.DataException
         Dart.Ftp.ProtocolException
            Dart.Ftp.FtpProtocolException
      System.SystemException
         System.IO.IOException
            Dart.Ftp.ZStreamException
   System.MarshalByRefObject
      System.ComponentModel.Component
         Dart.Ftp.ComponentBase
            Dart.Ftp.Ftp
            Dart.Ftp.SocketBase
               Dart.Ftp.TcpBase
      System.IO.Stream
         Dart.Ftp.BaseStream
            Dart.Ftp.ZStream
   System.Net.EndPoint
      System.Net.IPEndPoint
         Dart.Ftp.IPEndPoint

Reference

Dart.Ftp Assembly