itemdblclick not working on 2nd page pagingtoolbar

[stoneboys]

Hi all, What problems on my codes below? This my grid is working ok, I load store with pageSize = 10 & Use PagingToolbar , on first Pages : My listener ( itemdblclick ) is working, But I click To next Pages with PagingToolbar itemdblclick Not Working .
this error from firebug :

grid.getStore().getAt(record.index) is undefined


var rec = grid.getStore().getAt(record.index).get('Pin');

And this my grid code :

Ext.define('Model',{   extend: 'Ext.data.Model', 
  fields: [
{name: 'Pin'}, 

    {name: 'Name'}

] }); 


//Store
var Store = Ext.create('Ext.data.Store',{   pageSize: 10, 

  remoteSort: true, 

  autoDestroy: true, 

  autoLoad: true, 

  storeId: 'Store', 

  model: Model, 

  proxy:   new Ext.data.AjaxProxy({ 

           type: 'jsonp', 

              url: 'application/reg/registration.php', 

             extraParams:     { task: 'list' }, 

          reader:     { type: 'json', root: 'rows', totalProperty: 'results'} 

  }), 

  sorters: [{property: 'Pin', direction: 'ASC'}] 

}); 



var TwoGrid = Ext.create('Ext.grid.Panel',{   id: 'TwoGrid', 

  border: false, 

  stripeRows: true, 

  store: Store, 

  plugins: [Ext.create('Ext.ux.grid.GridSearch',{ 

                mode: 'remote', 

                width: 150 

    })],  

  bbar:   new Ext.PagingToolbar({ 

    store: Store, 

    displayInfo: true, 

    displayMsg: 'Displaying Patient {0} - {1} of {2}', 

    emptyMsg: 'No Patient to display'

  }), 

  columns: [
{id: 'Clpin', text: 'PIN', width: 150, dataIndex: 'Pin' }, 

    {id: 'CName',  text: 'NAME', width: 150,dataIndex: 'Name'}
] ,
  listeners:   { 

     itemdblclick: function(grid, record, item, index, e, eOpts ) { 

                     var rec = grid.getStore().getAt(record.index).get('Pin');  //error here when page on 2nd page and more...

 Ext.MessageBox.alert('Clicked!',rec); 

 }}

 
});

Thanks for answer..

[friend]

Try changing this line in your listener:

var rec = grid.getStore().getAt(record.index).get('Pin');

To This:

var rec = grid.getStore().getAt(index).get('Pin');