HP Data Entry and Forms Management System (VPLUS) Reference Manual (32209-90024)

74 Chapter3
INTRODUCTION TO FORMS DESIGN
EASE OF FORMS DESIGN
continues until the repeat option is changed.
Appended forms are particularly useful when the form is a single line that has an
indeterminate number of iterations. An order entry blank, for instance, could be designed
as a repeat/append form.
A form that repeats without the append option (R) is cleared each time the user presses
ENTER to enter data. For example, assume form X is a repeating form that overlays itself:
Note that this type of repeating form overlays itself even if there are other forms on the
screen.
The Next Form Option
You specify the name of the next form to be displayed after the current form or keep the
default of $HEAD. You may also specify whether the next form is to be appended to the
current form (A); and, if appended, whether the current form is to remain frozen on the
screen when the screen fills up (F). If the screen is to be cleared before the next form is
displayed, keep the default of C.
The following examples illustrate how freeze (F) and append (A) interact with the current
form. Assume a current form X and a next form Y. The next form (Y) is defined on its own
Form Menu as a repeating form appended to itself (repeat option = A for Append).
1. Current Form X -- Repeat Option = N
Next Form Option = C
Next Form Y -- Repeat Option = A
Form X is displayed, then after
ENTER, the screen is cleared and form Y is displayed.
After the next
ENTER, Y is repeated below itself until the user presses NEXT or the
application changes the repeat option.
X(1)X(1)
X(2)
X(1)
X(2)
X(3)
X(1) X(2) X(3)
Y(1)
X
Y(1)
Y(2)
Y(1)
Y(2)
Y(3)
screen cleared before next form