[flexcoders] FileChooser + DataGrid , Help !!!

[alom17959]

Hi everyone, i have a problem and i don't know what to do..
First of all, i have a datagrid with 9 columns, in the first one, i 
want to insert an itemEditor component, and its integrated by an 
HBox, and a TextInpu.

In the TextInput click event, i generate a fileChooser, and 
everything works fine, until I select a file from the filechooser, 
and i cant make the datagrid cell recognize the name of the file. 

the component:

<mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml"; width="130" 
horizontalScrollPolicy="off">
        <mx:Script>
                <![CDATA[
                        import mx.states.*;
                        import mx.controls.*;
                        import mx.managers.*;
            import mx.events.*;
                        import flash.events.*;
                        import flash.net.*;
                        
                        public var nomArch:String;
                        public var _refAddFiles:FileReferenceList;
        
                        
                        public function addFiles():void {
                                _refAddFiles = new FileReferenceList
();
                                _refAddFiles.addEventListener
(Event.SELECT, onSelectFile);
                                _refAddFiles.browse();
                        }
                        
                        public function onSelectFile
(event:Event):void {
                                archivo.text =_refAddFiles.fileList
[0].name;
                        }
                        public function ponernombre
(nombre:String):void{
                                nomArch = archivo.text = nombre;
                        }
                        
                ]]>
</mx:Script> 
        <mx:TextInput width="130" id="archivo" click="addFiles();"/>
</mx:HBox>

my datagrid column:

<mx:DataGridColumn headerText="Nombre del Archivo" width="130" 
itemEditor="fileSelection" />