Change background for collapsed gridpanel not possible

Hi,

i have a gridpanel (actually i have 3 gridpanels within a container, but like to keep it simple to describe my issue) and when i collapse the panel it leaves a white pane. Now, what i would like to do is to have an image instead of the white space that is left when the panel collapses.

I have tried all of the properties that seemed to have an influence.

Code:

                                                                       collapsedCls: 'y-collapsed',
                                                                        bodyCls: 'y-collapsed',
                                                                        cls: 'y-collapsed',

I have checked the debugger and the html elements get the CSS but the space after collapse stays white. The only thing that changes is the background of the panel bar (from collapsedCls).

Alternatively i tried to make the white space transparent and make the underlying container visible, but that didn't work either.

Any hint or suggestion welcome.

Thanks

ok



Change background for collapsed gridpanel not possible