How can I pass a String to a mxml?

Question

I am trying to pass a string to mxml file.
following are the part of codes:
var renderPDFForm:RenderPDFForm=new RenderPDFForm();
mx.core.Container.addChild.addChild(renderPDFForm);
The RenderPDFForm is actually a mxml file, I want to do something like when creating the instance, a string can be called.
Since we can't create constructor for mxml file, how I can do it?
Thanks,

Answer 1

So within your mxml file for the RenderPDFForm component:
<mx:Script>
    <![CDATA[
        private var _myData:String;
        public function set myData(str:String):void{
            _myData = str;
      public function get myData():String{
            return _myData;
    ]]>
</mx:Script>
Then in your main app:
<comp:RenderPDFForm myData="My nice string"/>
where comp is your namespace name.