title: Displaying Expander one below the other in wpf
body: <p>Consider 2 Expander controls are placed one below the other. If One Expander control is collapsed then the actaul gap (during expanded) have to be reduced and the other Expander control have to be displayed below to the first expander without gap (between first and second Expander). If first Expander is expanded then second have to be adjusted and displayed.How to achieve it?</p>