>Exuse me, why do I need to set the Enabled Property of the Revert button to .T.? In another app I don't do that.
>
>I think I have to set a grid Property, because I tied to cut&paste the buttonSet from the "right" app, the problem was not resolved.
>
>And where is Enabled Property of the Revert button? The "Revert"button is "Edit"button actually, appearing after clicking Edit button.

So, you may track cmdEdit.Enabled property. It seems to be reset programmatically in some event/method. Maybe even in button.click event?