Define XML or XMLList object as a direct child of the
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:MenuBar id="myMenuBar" labelField="@label"> <mx:XMLList> <menuitem label="MenuItem A"> <menuitem label="SubMenuItem A-1" enabled="False" /> <menuitem label="SubMenuItem A-2" /> <menuitem label="SubMenuItem A-3" /> <menuitem label="SubMenuItem A-4" /> <menuitem label="SubMenuItem A-5" /> <menuitem label="SubMenuItem A-6" /> <menuitem label="SubMenuItem A-7" /> <menuitem label="SubMenuItem A-8" /> <menuitem label="SubMenuItem A-9" /> <menuitem label="SubMenuItem A-10" /> </menuitem> <menuitem label="MenuItem B" type="check" selected="true" /> <menuitem label="MenuItem C" type="check" selected="false" /> <menuitem label="MenuItem D"> <menuitem label="SubMenuItem D-1" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-2" type="radio" groupName="one" selected="true" /> <menuitem label="SubMenuItem D-3" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-4" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-5" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-6" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-7" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-8" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-9" type="radio" groupName="one" /> <menuitem label="SubMenuItem D-10" type="radio" groupName="one" /> </menuitem> </mx:XMLList> </mx:MenuBar> </mx:Application>