vbox layout problem

[santoshsatav]

i have 2 panels in viewport having

layout: {
                        type: 'vbox',
                       align: 'stretch'
                    },

top panel is collapsible , so my question is when i collapse top panel why 2'nd panel below not auto fits himself in available region it always stuck to its original position ,this behavior achieved in border layout by default, why its not working for vbox layout?

thank you,

[santoshsatav]

any body know how to do it

[Condor]

The vbox container isn't notified of the child item collapse.

You will need to call container.doLayout() from the expand and collapse handlers of the child items.