Problem with this.findParentByType('panel') within listener

[rich71]

Hello,

I would like to know how I can find the parent and then find a field with an itemId

I have seen the examples in the api, but it returns undefined in firebug?

Ext.ns('Gebruiker');
  
Gebruiker.Form = Ext.extend(Ext.form.FormPanel, {
...
{xtype: 'checkbox', name:'nieuwwwoord',itemId: 'nieuwwwoord',disabled: !wwdisabled,
            listeners:{check: {fn: function(){
                                        
                      var win = this.findParentByType('panel');
                      console.log(win);            
                       //var ww = win.getComponent('wwoord');
                       if(this.getValue() === true){
                                //ww.setDisabled(false);

....etc

Thanks, Richard