< chagrined >
yeesh, that's even how i actually did this when i needed it myself....
< /chagrined >

>Trey's advice will work, and here's another way to do it.
>
>You already have the gostop property in the Form, right? Create a gostop_assign method. This will fire when the gostop value is changed. In that method, do this:
>
>

*** Form.gostop_Assign method code
>LPARAMETERS vNewVal
>This.GoStop=vNewVal
>This.Button.Caption=IIF(This.GoStop,'Go','Stop')
>RETURN

>