Yep, I agree with Eric. Dock your two controls (Dock.Fill) and they'll always "fill" their respective panels automatically.

~~Bonnie


>I have a treeview in the left panel, and a tab strip control in the right panel:
>
>

>private void splitContainer_SplitterMoved(object sender, SplitterEventArgs e)
>{
>    treeView1.Width = splitContainer.Panel1.Width;
>    tabControl.Width = splitContainer.Panel2.Width;
>}
>
>

>
>The treeview resizes fine. The tabstrip control's width is not being set.
>
>If I move the splitter in very small increments, this works fine. Large changes are not
>working.
>
>Anyone know what I'm doing wrong?