there is a panel for user enter searching criteria, then when the user press the search button, the result panel is shown, and if the user close the result panel, the previous searching criteria screen (with previous entered value) should remain there.
I think is there two kind of approach
1) just hidden the searching panel, but not remove it from parent
2) when passing searching criteria to server, store the criteria in session. then each time the searching panel is created, pull the value in session.
is this correct?
how to handle this type of problem?