I have an expander inside a user control, which is inside of a raddocking's left pane. What I have done is that, I let the expander to decide the width of the docking's left side. But the problem is that as soon as I change the width of the docking manually (I drag the docking's corner to change its width), the mechanism stops, that is, the expander can not change the width of the docking anymore!
I would like to know why and how I can fix it. Any ideas?