Pathmaker Programming Guide

Controlling Default Screen Layout
Creating Requesters
5–18 067868 Tandem Computers Incorporated
Attributes Affecting MENU and TRNS Requester Default Screens
The attributes that affect MENU and TRNS requester default screens are described on
the following pages.
Displayed Fields. You can use the Display Field List screen to specify fields to be
displayed on the default screen. The Pathmaker product automatically creates a
Display Field List for TRNS requesters; you can create a Display Field List for MENU
requesters, but you must add the fields to the application screen from within the
Screen Painter.
The Display Field List screen lists fields associated with one reference object that is to
be shown on the default screen. A reference object can be an elementary item or a
group item. If the reference object is a group item, the group item is expanded to its
elementary members on the Display Field List screen.
Initially, the Display Field List screen shows all the fields of the selected reference
object in the order in which they are specified in the DDL description. You can
rearrange the list of displayed fields by swapping the names and then updating the
screen. The displayed data fields that are not shown on the Display Field List screen
are those that have an OCCURS clause; for these fields, only the field name, not each
occurrence, is shown on the Display Field List screen.
Any field that is part of the selected reference object but is deleted from the Display
Field List is not shown on the default screen. However, such a field is still available
for use in IPCs.
Screen Format. You can use the Requester Definition screen to specify the screen format
in which groups of data fields are displayed.
Screen Format can be one of the following:
UNCompressed Shows the fields one under the other.
COMpressed Aligns the fields for each lexical level horizontally, placing each field
within that level on the same line as the field before, if it fits.
TABular Suppresses any group headings and creates a table of the
elementary fields. Tabular is typically used with multiple
repetitions of a record.