Public Event DataIsBusyChanged As EventHandler

Dim instance As Ftp
Dim handler As EventHandler
 
AddHandler instance.DataIsBusyChanged, handler

public event EventHandler DataIsBusyChanged

public:
event EventHandler^ DataIsBusyChanged

Can be used as a trigger for enabling/disabling the UI while a file transfer or listing process is active.

Reference

Ftp Class
Ftp Members