
Код:
import mx.data.binding.*;
var src = new EndPoint();
src.component = src_txt;
src.property = "text";
src.event = ["change"];
var dest = new EndPoint();
dest.component = dest_txt;
dest.property = "text";
dest.event = ["enter"];
var myBinding:Binding = new Binding(src, dest,"",true);
и

Код:
on(enter){
}
повесь на dest_txt