I have a collapsible expander with an update panel inside it.
If I set the expander to collapsed by default, then expand it and change the update panel, it resizes appropriately to fit.
However, if I set it to expanded by default, then change the update panel, it does not resize, the updatepanel's content overflows but somehow remains hidden.
I saw in the FAQ to set overflow:hidden for collapsed elements. What should I set for expanded elements?