Rational Developer for System z, Version 7.5

Screen -CE Lines tab

The purpose of this tab is to identify the fields which constitute the Screen. Each field has a position and a length. Some fields may contain data.

The elements which constitute the Screen layout are presented here in a tree structure whose higher branches are the categories. A category is a group of consecutive Data Elements, Screen calls and/or labels in the list defining the Screen. These elements can be positioned in any manner, corresponding to the overall logic of processing.

There are two major types of fields in a Screen:
  • Fields with fixed contents. These are generally labels, which are directly associated with variable fields and usually specify the contents of that field.
  • Fields with variable contents, which are either unprotected (input fields) or protected (display fields). These correspond to Data Elements described and processed in the program associated with the Screen layout.

You can also call an existing Screen in order to integrate its description into the current Screen.

The -CE Lines tab looks like this:

Screen -CE Lines

It is constituted of three different parts:
  • On the left, an area with a tree structure which displays all the elements which constitute the Screen:
    • These elements belong to one of the three categories:
      • The heading of the Screen (Screen-top category).
      • The repetitive section of the Screen (repetitive category),
      • The bottom of the Screen (Screen-bottom category).

      Each category can be defined only once in a given screen.

      Inside a category, the category's elements are displayed in the order in which they have been called. Each line displays the type and name of the element.

      All the elements called before the repetitive category implicitly belong to the top category, even if the category line is not displayed. All the elements called under a category belong to this category.

      Categories are displayed with a Category icon and the name given to the category.

    • Inside each category, you can see the elements called in the Screen:
      • Fields, which can be protected, variable, or protected and received (field icon),
      • Labels, which can be fixed labels, Data Element labels, or Screen titles (Label icon),
      • Screen call (Screen call icon).
    • Each field call line contains a nested called line, named additional controls for the selected field (Additional controls for the selected field icon). Click on the + symbol located in front of the field call to see it. This line displays, between parentheses, and in their display order, the values (the one-character values which correspond to the VA Pac choices, and which are is in the first position of the items in the dropdown lists) selected for each additional controls. Dashes separate each value. If the default value (which corresponds to a blank value in VA Pac) has been selected for a control, a blank is displayed.
  • In the center part, buttons which enable you to add fields to your Screen, remove existing ones or move them up/down.
  • On the right, sections which open up depending on your selection in the left area:
    • If you select a label line, the Label Definition section opens up.
    • If you select a category line, the Category Definition section opens up.
    • If you select a Screen call line, the Screen Call Definition section opens up.
    • If you select a field line, the Field Definition section opens up.
    • If you select a line nested inside a field line, the Additional controls for the selected field section opens up.
Related tasks
Defining the Screen elements and layout

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