Apple WebObjects 3.5 Tools And Techniques Bedienungsanleitung PDF herunterladen (Seite 77)

Creating Other WebObjects

time. A WOString is abstract in that it doesn’t represent any speciﬁc

element, but it can be contained in any other HTML element that can

contain text.

WebObjects Builder provides a shortcut for binding the

value attribute of a

WOString, since it is by far the most common attribute you bind.

Instead of dragging to one of the icons, drag to the center binding box. The

binding appears directly in the box, and the Inspector doesn’t come to the

front.

Dynamic Hyperlinks

Dynamic hyperlinks (WOHyperlink) allow you to specify the link’s

destination at run time rather than at compile time. There are several ways

to do this:

•You can specify the name of a page in your application as the destination

of the link. To do this, bind the name to the WOHyperlink’s

pageName

attribute. This is useful since pages in a WebObjects application don’t

have predictable URLs that you can specify in an HTML hyperlink.

•You can specify an action to be performed when the hyperlink is clicked

by binding WOHyperlink’s

action attribute to an action method in your

code. This method can perform any sort of action, as well as returning a

page as the destination.

•You can also specify a URL as the destination by binding to the

href

attribute.

To create a dynamic hyperlink:

1. Click in the toolbar.

2. Replace the word Hyperlink with the text of the link.

3. Create the element’s bindings.

To learn how to create a static hyperlink, see “Creating Hyperlinks”.

Drag to here to bind value

attribute directly.

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Apple WebObjects 3.5 Tools And Techniques Bedienungsanleitung Seite 77