HP 3000 Manuals HP 3000 Manuals
Summary
In this lesson you learned how to create a data screen.
Data screens allow the user to enter data and allow the application to
display information to the user. Data screens can have both input and
display fields, and can also use system items and text literals.
Data screens allow you to specify the following:
* Screen field data validation characteristics.
* Data movement associated with screen fields.
* Screen field behavior.
* Logic functions associated with fields.
Creating a data screen involves four tasks:
1. Defining the name and characteristics of the data screen on the
screen header screen.
2. Painting the screen image with the screen painter. This involves
painting system items, input fields, display fields, and text
items on the screen.
3. Defining the screen field details. This involves specifying the
data validation, data movement details, and behavioral
characteristics for the input and display fields on the data
screen. You can also associate logic functions with screen
fields.
4. Generating the screen.
The data screen you created in this lesson allows the user to add,
delete, modify, or review records stored in the product data file. In
the next chapter, you will learn how to produce the logic to perform some
of these tasks.