MACROMEDIA FLASH MX 2004-USING COMPONENTS Use Manual page 194

The second usage example uses a dispatcher/listener event model. A component instance
(
comboBoxInstance
function, also called a handler, on a listener object (
a method with the same name as the event on the listener object; the method is called when the
event is triggered. When the event is triggered, it automatically passes an event object
( ) to the listener object method. Each event object has properties that contain
eventObject
information about the event. You can use these properties to write code that handles the event.
Finally, you call the
the event to register the listener with the instance. When the instance dispatches the event, the
listener is called.
For more information, see
Example
The following example sends a message to the Output panel when the drop-down list begins
to close:
form.enter = function(){
trace("The combo box enter event was triggered");
}
myCombo.addEventListener("enter", form);
See also
EventDispatcher.addEventListener()
ComboBox.getItemAt()
Availability
Flash Player 6 (6.0 79.0).
Edition
Flash MX 2004.
Usage
comboBoxInstance.getItemAt(index)
Parameters
The index of the item to retrieve. The index must be a number greater than or equal to
index
0, and less than the value of
Returns
The indexed item object or value. The value is undefined if the index is out of range.
Description
Method; retrieves the item at a specified index.
194 Chapter 6: Components Dictionary
) dispatches an event (in this case,
addEventListener()
"EventDispatcher class" on page
ComboBox.length
) and the event is handled by a
enter
listenerObject
method on the component instance that broadcasts
415.
.
) that you create. You define