Makes sense to you in what way? -Rick


>>Nope. You don't have to do that to make visible. I tested it. Create a blank form, place a checkbox, and a command button on it. In the checkbox set the controlsource property to "m.var" then in the commandbutton click event, refer to the m.var variable, and sure enough, the click event of the command button can "see" the variable. I was really surprised at this behavior as it seems to go against what I would you could do or, what you are supposed to do, in vfp. ??
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>I read Erik's explanation on this. Make sense to me.