>Dragan,
>
>If you bind the opg to a property of the container and just simply call this.parent.Refresh()? The button Refresh() can then be this.Enabled = SomeFunctionOfTheProperty

The opg was already bound to a field; the trouble was that one of the command buttons had to be enabled if at least one of the opg's on Page2 had a nondefault value - so for any change of value on any of them, I had to loop through all of them on that page and look for the first nondefault value. And the button was on the last container on that page - at least I knew there will be only one such button, so I kept a reference to it in a page property. On other pages, there was a 1-1 connection between the opg and the button. Not quite easy to make it streamlined, and I still wanted to achieve my goal of having one class of containers to deal with and keep the thing data driven.