>>>>>Hi everyone,
>>>>>
>>>>>I have a custom Control that I need to prevent access to under certain circumstances, however the control only appears to have a GotFocus and LostFocus not a When or Valid.
>>>>>
>>>>>Is there some way to reproduce the behaviour of the When method?
>>>>>
>>>>>Thanks in advance
>>>>
>>>>what about setting the controls 'enabled' property to 'FALSE'?
>>>>The user will not have 'access' to the control.
>>>>When the 'certain circumstance' occurs...
>>>>
>>>>THISFORM.Control.Enabled = .f.
>>>>
>>>>or
>>>>
>>>>THISFORM.Control.ReadONly = .t. is another way to limit user access to a control.....
>>>>
>>>>
>>>>i hope this helps...
>>>>if it does not...
>>>>... get more specific with your question..
>>>
>>>
>>>I guess that the real problem is that I can only test if they can access the control within the control ie what should be the When method.
>>>
>>>Any thoughts?
>>
>>so when the user alters the contents of the control ... you would want to disable it ?
>>
>>try the
>>'interactivechange' event of the control....
>
>Sorry I'm not being very clear today - I go on holiday tomorrow so.....
>
>What I need to happen is that the user clicks on a custom scrollbar the scrollbar then calls the necessary code to check if the current record needs to be saved, if it does the user gets a question, depending on the answer the scroll may be stopped leaving the user on the previous record.
>
>From the GotFocus I can't seem to stop the scroll happening!

i did not know you could subclass a 'scrollbar' ?

is this scroll bar ...
part of a grid? or a combobox ... or what?