>Hi,
> Thank you for reply. I have some unclear question here.
> 1. Where should I place checkbox.value = 2 in order to have those relevant checkbox disabled?
> 2. How to program the checkbox in case the checkbox know it should be disbale or not? (e.g. IIF())
>
>Thank you

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John,
You have the container and checkboxes in it as "Access", "Read", "Write".
Setting value 2 is not mandatory just reminded it existed. In gotfocus of your container you could have this code :

with this
 .chkAccess.Enabled = lSomeThing
 .chkRead.Enabled = lSomeThing1
 .chkWrite.Enabled = lSomeThing2
endwith

Cetin