PageCatalog

After closing webpart how to get back?

Problem:Usually when we click on the close menu of web-part it is disappear from screen. I want to display a window in which all the web-parts which were disappear so user can select and get back ? Solution: Just put a CatalogZoneWebPart with PageCatalog inside it and after running the appliaction you’ll find that your After closing webpart how to get back?