Adobe Dreamweaver CS3 Manuale Utente Scaricare il pdf (Pagina 602)

DREAMWEAVER CS3

User Guide

595

The server behavior is listed in the Server Behaviors panel (Window > Server Behavior); click the Plus (+) button to

view the server behavior.

5 Test the server behavior and ensure that it functions properly.

Position a code block relative to another tag on the page

1

In the Insert Code pop-up menu, select Relative To A Specific Tag.

2 In the Tag box, enter the tag or select one from the pop-up menu.

If you enter a tag, don’t include the angled brackets (

<>).

3 Specify a location relative to the tag by choosing an option in the Relative Position pop-up menu.

Position a code block relative to a tag selected by the page designer

1

In the Insert Code pop-up menu, select Relative To The Selection.

2 Specify a location relative to the selection by choosing an option in the Relative Position pop-up menu.

Youcaninsertyourcodeblockjustbeforeorjustaftertheselection.Youcanalsoreplacetheselectionwithyourcode

block, or you can wrap the code block around the selection.

Towrapthecodeblockaroundaselection,theselectionmustconsistofanopeningandclosingtagwithnothingin

between, as follows:

<CFIF Day=”Monday”></CFIF>

Inserttheopeningtagpieceofthecodeblockbeforetheselection’sopeningtagandtheclosingtagpieceofthecode

block after the selection’s closing tag.

Repeating code blocks with the loop directive

To repeat a portion of a code block or the entire code block a number of times, use the following syntax:

<@ loop (@@param1@@,@@param2@@) @>code block<@ endloop @>

When creating server behaviors, you can use looping constructs to repeat a code block a specified number of times.

<@ loop (@@param1@@,@@param2@@,@@param3@@,@@param_n@@) @>code block

<@ endloop @>

The loop directive accepts a comma-separated list of parameter arrays as arguments. In this case, parameter array

arguments allow a user to supply multiple values for a single parameter. The repeating text is duplicated n times,

where n is the length of the parameter array arguments. If more than one parameter array argument is specified, all

the arrays must have the same length. On the ith evaluation of the loop, the ith elements of the parameter arrays

replace the associated parameter instances in the code block.

When you create a dialog box for the server behavior, you can add a control to the dialog box that lets the page

designer create parameter arrays. Dreamweaver includes a simple array control that you can use to create dialog

boxes. This control, called Text Field Comma Separated List, is available through the Server Behavior Builder. To

create user interface elements of greater complexity, see the API documentation to create a dialog box with a control

to create arrays (a grid control, for example).

You can nest any number of conditionals or a loop directive within a conditional directive. For example, you can

specify that if an expression is true to execute a loop.

The following example shows how such repeating code blocks can be used to create server behaviors (the example is

a ColdFusion behavior used to access a stored procedure):

September 4, 2007

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