How can i find the label of all the tabs of a tab navigator??

Question

I have a tab navigator which has three fixed tabs and dynamically i am creating few tabs. Before creating a tab i wanted to know which all tabs are currently open, basically the name of all the tabs which are open.
Please let me know how can i achieve this.
Thanks

Answer 1

extended from the TabNavigator example in the API docs
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                       xmlns:s="library://ns.adobe.com/flex/spark"
                       xmlns:mx="library://ns.adobe.com/flex/mx"
                       minWidth="955" minHeight="600"
                       creationComplete="init()">
    <fx:Script>
        <![CDATA[
            private function init():void
                for (var i:int = 0; i < tn.numElements; i++)
                    var btn:Button = tn.getTabAt(i);
                    trace(btn.label);
        ]]>
    </fx:Script>
    <s:layout>
        <s:VerticalLayout/>
    </s:layout>
    <s:Panel title="TabNavigator Container Example"
             width="75%" height="75%"
             horizontalCenter="0" verticalCenter="0">
        <s:VGroup left="10" right="10" top="10" bottom="10">
            <s:Label width="100%" color="blue"
                     text="Select the tabs to change the panel."/>
            <mx:TabNavigator id="tn"  width="100%" height="100%">
                <!-- Define each panel using a VBox container. -->
                <mx:VBox label="Panel 1">
                    <mx:Label text="TabNavigator container panel 1"/>
                </mx:VBox>
                <mx:VBox label="Panel 2">
                    <mx:Label text="TabNavigator container panel 2"/>
                </mx:VBox>
                <mx:VBox label="Panel 3">
                    <mx:Label text="TabNavigator container panel 3"/>
                </mx:VBox>
            </mx:TabNavigator>
            <s:Label width="100%" color="blue"
                     text="Programmatically select the panel using a Button control."/>
            <s:HGroup>
                <mx:Button label="Select Tab 1" click="tn.selectedIndex=0"/>
                <mx:Button label="Select Tab 2" click="tn.selectedIndex=1"/>
                <mx:Button label="Select Tab 3" click="tn.selectedIndex=2"/>
            </s:HGroup>
        </s:VGroup>
    </s:Panel>
</s:WindowedApplication>