Here is the structure of the layout
So far what I have done was, In the showdetailheader disclosed property I am setting up a boolean variable which is set to true or false from a managed bean. when they click "expand all" button the boolean variable is set to true and then I am refreshing the
showdetail header. This works fine when I dont make any manual collapse/expand in the showdetailheader. After I made the manual changes even after I click expand all button that particular manual change I did does not expand.
Could some one give me some idea like how to make the expand all/collapse all works in this scenario ???