User Guide

Selection 577

Example

In the following example, you create two input text fields at runtime, setting the borders for

each text field to

true. This code creates a new (generic) ActionScript object named

focusListener. This object defines for itself an onSetFocus property, to which it assigns a

function. The function takes two parameters: a reference to the text field that lost focus, and

one to the text field that gained focus. The function sets the

border property of the text field

that lost focus to

false, and sets the border property of the text field that gained focus to

true:

this.createTextField("one_txt", 99, 10, 10, 200, 20);

this.createTextField("two_txt", 100, 10, 50, 200, 20);

one_txt.border = true;

one_txt.type = "input";

two_txt.border = true;

two_txt.type = "input";

var focusListener:Object = new Object();

focusListener.onSetFocus = function(oldFocus_txt, newFocus_txt) {

oldFocus_txt.border = false;

newFocus_txt.border = true;

};

Selection.addListener(focusListener);

When you test the SWF file, try using Tab to move between the two text fields. Make sure

that you select Control > Disable Keyboard Shortcuts so you can change focus between the

two fields using Tab.