Managing Pages in Tabset Frames

Software Customisation Guide

Gadget Set : Frame Gadgets : Managing Pages in Tabset Frames

Managing Pages in Tabset Frames

Within a Tabset frame, whenever the user interactively selects a new tab a HIDDEN event is raised for the previous tabbed page frame and then a SHOWN event is raised for the new one, which pops to the front. The HIDDEN and SHOWN callbacks are only executed for tabbed page frames which provide an Open callback.

If the user wants to manage tabbed pages that are also radio groups, then they must supply an open callback so they can differentiate the SELECT (RTOGGLE) event and the (page) SHOWN event.

Setting a tabbed page frame's VISIBLE property, e.g. !this.TabbedPage.visible = true, selects it and gives it focus, but does not raise HIDDEN or SHOWN events.

The example below shows a typical form method the user could use as a PML open callback to handle frame events for any frame gadgets defined on a form:

define method .frameEvents(!frame is GADGET, !event is
STRING)

-- Frame events open callback handler

if( !event eq 'SELECT' ) then

--Handle radio button selection

!selection = !frame.val

elseif( !event eq 'SHOWN' ) then

-- tabbed page selected

-- modify page content

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