Control.getAll
Returns a control object of the same type as the control object on which this method is invoked, that gives access
to all occurrences of this control on the page. This is only meaningful when the control appears more
than once i.e. it is located inside either a RepeatingTableControl or a TableControl. For example,
changes the background color of all occurrences of a Button Control, whereas:
changes only a single Button Control. Both Repeater Controls and Table Controls are linked to a com.ebasetech.xi.api.Table and the Button Control
changed will be the one on the current row of the linked table.
returns Control