Init, Exit columns

The Init or Exit columns are used for defining the same object-related actions as in the Action column.

The Init action is executed if the object is called for the first time in the page, e.g. page change to a new page.

The Exit action is executed in order to exit a page, i.e. if the object is removed from the memory.

These actions are typically used for setting or resetting variables that are used on specific pages.