PMFJI, but here's a couple of notes: drop down lists _have_ a readonly property, that you can't use. It only affects dropdown combos. So, I did the same for cbo that I did for CheckBoxes (same solution as DF above suggests.)
>>Carlos,
>>
>>I added a custom property to my lowest level checkbox mlReadOnly (you can't use ReadOnly because it terribly confused VFP) it defaults to .F. the When method is:
>>
>>return ! this.mlReadOnly
...snip