>No, it's not that.
>
>If you look at the 2nd link I provided in my original post, you will see that the client
>container gets moved.
>
>I found that there us an autocenter control, which I set to false.
>
>While the client control no longer gets centered, it is never resized to display
>all the controls on it.
>
>It's too bad because this control looked promising.
>
>

I'm not sure then, I haven't tried this control myself. The one I used in the past (but I don't remember its resize behavior) was from Alexander Grigorjev here in Downloads section Container with ScrollBars File #10072. I used it last time several years ago and I liked it that time.