Apple WebObjects 5 Manual de usuario descargar pdf (Pagina 40)

40 A Programmer’s View of WebObjects

 Apple Computer, Inc. January 2002

CHAPTER 4

HTML-Based Applications

Some dynamic elements have no HTML counterpart; WORepetition and

WOConditional are examples. Table 4-1 lists some of the more commonly used

dynamic elements.

Reusing Components

You can embed a component within another component. For example, a component

might represent only the header or footer of a page; you can nest it inside of a

component that represents the rest of the page. A component designed to be nested

within another component is called a reusable component, shared component, or

Table 4-1 Example Dynamic Elements

Element Name Description

WOBrowser selection list that displays multiple items at a time

WOCheckBox checkbox user interface control

WOConditional determines whether a portion of the component (or Web

page) is generated

WOForm container element that generates a ﬁll-in form

WOHyperlink generates a hypertext link

WOImage displays an image

WORadioButton represents a toggle switch

WORepetition container element that repeats its contents (that is,

everything between the <WEBOBJECT...> and </WEBOBJECT...>

tags in the template ﬁle) a given number of times

WOResetButton button that clears a form

WOString dynamically generated string

WOSubmitButton submit button

WOText multiline ﬁeld for text input and display

WOTextField single-line ﬁeld for text input and display

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 107 108

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Apple WebObjects 5 Manual de usuario Pagina 40