VB.NET

Clear the FTP Session Log

Demonstrates the Chilkat Ftp2.ClearSessionLog method, which clears the in-memory FTP protocol log collected while KeepSessionLog is enabled. It takes no arguments.

Background: With session logging on, the SessionLog accumulates the full FTP command/reply conversation, which is invaluable for diagnosing a failed transfer. Over a long-lived session it grows unbounded, so clearing it frees memory — and, more usefully, lets you capture the log for one specific operation in isolation by clearing just before and reading just after.

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Dim success As Boolean = False

'  Demonstrates the Ftp2.ClearSessionLog method, which clears the in-memory FTP protocol log.  It
'  takes no arguments and is a void method.

Dim ftp As New Chilkat.Ftp2

ftp.Hostname = "ftp.example.com"
ftp.Username = "myFtpLogin"

'  Normally you would not hard-code the password in source.  You should instead obtain it
'  from an interactive prompt, environment variable, or a secrets vault.
ftp.Password = "myPassword"

success = ftp.Connect()
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


'  The SessionLog accumulates the FTP protocol conversation when KeepSessionLog is enabled, which
'  is useful for debugging.
ftp.KeepSessionLog = True

'  ... perform some operations ...

'  Clear the log, for example before starting a new logical operation whose log you want to
'  capture in isolation.
ftp.ClearSessionLog()
Debug.WriteLine("Session log cleared.")

success = ftp.Disconnect()
If (success = False) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If