Getting an object's parent

programming flash
1

I’ve made a class that extends the TextInput object and when I create a new instance of it, I would like to be able to call a function in it’s parent container (another class that extends MovieClip).

I don’t know what I am doing wrong, but trace(this.parent) returns “null”.
Is it possible to determine the parent movieclip in which the textinput resides?

Thanks in advance.

Shortened code example:


// parent
public class FieldRow extends MovieClip {
  public function FieldRow() {
    // i create an instance of my custom TextInput class
    var field:fTextShort = new fTextShort();
    addChild(field);
 }
}

// child
public class fTextShort extends TextInput {
   public function fTextShort() {
     trace(this.parent);             // returns null
   }
}