Flash CS3 Documentation

ActionScript 2.0 Components Language Reference > Accordion component > Accordion.selectedIndex

Accordion.selectedIndex

Availability

Flash Player 6 (6.0.79.0).

Edition

Flash MX Professional 2004.

Usage

accordionInstance.selectedIndex

Description

Property; the zero-based index of the selected child in an accordion with one or more children. For an accordion with no child views, the only valid value is undefined.

Each accordion child is given an index number for its position. This index number is zero-based, so the first child is 0, the second child is 1, and so on. The valid values of selectedIndex are 0, 1, 2, ... , n - 1, where n is the number of children.

Setting this property to a child causes the accordion to begin the transition animation to display the specified child.

Changing the value of selectedIndex also changes the value of selectedChild.

Example

The following example detects when a child is selected and displays the child's order in the Output panel each time a header is selected:

// Create new Listener object.
var my_accListener:Object = new Object();
my_accListener.change = function() {
    trace("Changed to different view");
    // Assign label of child panel to variable.
    var selectedChild_num:Number = my_acc.selectedIndex;
    // Perform action based on selected child.
    switch (selectedChild_num) {
    case 0: 
        trace("One was selected");
        break;
    case 1:
        trace("Two was selected");
        break;
    case 2: 
        trace("Three was selected");
        break;
    }
};
my_acc.addEventListener("change", my_accListener);

See also

Accordion.numChildren, Accordion.selectedChild

Flash CS3