ActionScript 2.0 Components Language Reference 
ActionScript 2.0 Components Language Reference |
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Flash Player 6 (6.0.79.0).
Flash MX 2004.
radioButtonInstance.selectionradioButtonGroup.selection
Property; behaves differently depending on whether you get or set the property. If you get the property, it returns the object reference of the currently selected radio button in a radio button group. If you set the property, it selects the specified radio button (passed as an object reference) in a radio button group and deselects the previously selected radio button.
The following example creates three radio buttons in a radio group, positions the buttons, and creates a listener for a click event on the radio group. When the user clicks a radio button, the listener uses the selection property to display the instance name of the button that was clicked.
You first drag a RadioButton component from the Components panel to the current document's library, and then add the following code to Frame 1 of the main timeline.
/**
Requires:
- RadioButton component in library
*/
import mx.controls.RadioButton;
this.createClassObject(RadioButton, "first_rb", 10, {label:"first", groupName:"radioGroup"});
this.createClassObject(RadioButton, "second_rb", 20, {label:"second", groupName:"radioGroup"});
this.createClassObject(RadioButton, "third_rb", 30, {label:"third", groupName:"radioGroup"});
// Position radio buttons on Stage.
second_rb.move(0, first_rb.y + first_rb.height);
third_rb.move(0, second_rb.y + second_rb.height);
// Create listener object.
var rbListener:Object = new Object();
rbListener.click = function(evt_obj:Object){
trace("The selected radio instance is " + radioGroup.selection);
}
// Add listener.ll
radioGroup.addEventListener("click", rbListener);
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