I have a Ext.data.Store where I have loaded data using Jsonreader. I want to fetch one or several of the values in the array, and I have tried several solutions without any luck.

An example of what I am trying to do:


Code:
Code:
alert(store.columns.dataIndex['butikk_navn']);
Code:
alert(store.data.fields['butikk_navn']);
Here's my Json code:
Code:
 var store = new Ext.data.Store({
   proxy: new Ext.data.HttpProxy({
    url: 'registercompany.php?mode=listRegistercompany',
                                
    method : 'POST'
   }),
   reader: new Ext.data.JsonReader({
    root: 'response.value.items',
                                
    totalProperty: 'total_count',
    id: 'company_id'
   },[
    {name: 'company_id'},
    {name: 'company_name'},
    {name: 'orgno'},
    {name: 'firstname'},
    {name: 'lastname'},
    {name: 'address1'},
    {name: 'address2'},
    {name: 'postalcode'},
    {name: 'postalarea'},
    {name: 'phone1'},
    {name: 'mobile'},
    {name: 'fax1'},
    {name: 'email'},
    {name: 'www'},
    {name: 'bankaccount'},
    {name: 'password'},
    {name: 'member_role'},
    {name: 'activation_code'},
    {name: 'activation_status'},
                                {name: 'bransje'},
                                {name: 'apningstider_hverdag'},
                                {name: 'apningstider_helg'},
                                {name: 'stengetider_helg'},
                                {name: 'stengetider_hverdag'},
                                {name: 'butikk_navn'},
                                {name: 'butikk_addresse'},
                                {name: 'butikk_telefon'},
                                {name: 'butikk_postnummer'},
                                {name: 'butikk_poststed'},
                                {name: 'butikk_beskrivelse'},
                                {name: 'butikk_faks'},
                                 {name: 'butikk_epost'}

   ])
  });
Where I am trying to output the field name butikk_navn.