This event is generated when an error occurs during a control
action. Errors not generated by the control itself, such as errors
related to the programming language or general component errors, do
not trigger this event.
The ErrorCode argument specifies the last error that has
occurred. If the error is network related, the error code values
returned by the control correspond to those returned by the standard
Windows Sockets library.
The Description argument is a string that describes the
error.