Rational Programming Patterns for System z

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 can contain data.

The elements which constitute the Screen layout are presented here in a table and can be grouped inside three categories (top, repetitive, and bottom categories).

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). They 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.

Figure 1. Sample of a -CE Lines tab
Screen -CE Lines
It is constituted of three different parts:
  • An editable table, which is identical to the Pacbase -CE screen. You can enter values in this table directly, if you are familiar with the -CE screen.
    Note: For a guided input, you must use the definition sections, which you open with the Add... buttons. These sections only display the relevant fields for the inserted elements, with all the possible values for each field.

    This table displays all the elements which constitute the Screen:

    • Fields, which can be protected, variable, or protected and received (field icon).

      Each field call line contains one or more nested lines which display the information specified in the additional controls for the selected field section (Additional controls for the selected field icon). Click the + symbol located at the beginning of the field call line to see it.

    • Labels, which can be fixed labels, Data Element labels, or Screen titles (Label icon).
    • Screen call (Screen call icon).

    Each call line displays the type and name of the element.

    These elements belong to one of the three categories (Category icon). Each category can be defined only once in a given Screen:
    • The heading of the Screen (Screen-top category).
    • The repetitive section of the Screen (repetitive category),
    • The bottom of the Screen (Screen-bottom category).

    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 after a category line belong to this category.

    All the table columns are displayed by default. To reduce the number of columns, right-click the table and select Show columns > Select.

    The table columns display the:
    • Position in columns P (absolute or relative positioning), LN (line position) and COL (column position). They show the position of the field, label, category or Screen call in the current Screen.
    • Type in column N. It shows whether the field is protected or variable, and whether the label is fixed or represents a Screen title or Data Element label.
    • Field presentation in columns L (display of the Data Element only, or of the Data Element and its label (with the type and position of the label)), C (automatic positioning of the cursor on the field when the Screen is opened up), Init Value (initial value), and Sim Value (simulation value).
    • Number of repetitions in columns HR (horizontal repetition), and VR (vertical repetition) for a field or the repetitive category.
    • Additional controls for the field in columns P (presence check), V (action code), U (update option), Target (target Segment code), Source (source Segment code), S (source type), and LV (generation level).
    • Intensity, presentation, and color attributes in columns In (intensity attribute), Pr (presentation attribute), and Co (color attribute) for the Data Element and label (if any) which constitute the field, or for the label.
    • Label which are to be displayed on the Screen in column Label.
    Important: For explanations and the list of all the possible values for each input field, see the detailed help of the appropriate definition section. For example, to see the detailed explanations on Init Value, see the help of the Field definition section.
  • Buttons you can click to add fields to your Screen, remove existing fields, or move them up/down.
  • Sections which open up depending on your selection in the table or on the line you want to create. These sections contain fields in which you select or enter the values. When you save, these values are then displayed in the table.
    Important: For explanations and the list of all the possible values for each input field, see the detailed help of the appropriate definition section. For example, to see the detailed explanations on Init Value, see the help of the Field definition section.
    If you select a:
    • Label line, the Label definition section opens up.
    • Category line, the Category definition section opens up.
    • Screen call line, the Screen Call definition section opens up.
    • Field line, the Field definition section opens up.
    • Line nested inside a field line, the Additional controls for the selected field section opens up.

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