Data Difficulty in Extjs4 paging grid!!

[sferg989]

I am having problems getting data to show up in the grid. can someone help me

Here is my code/ form the data is coming in

Ext.define('User', {
    extend: 'Ext.data.Model',
    fields: [
            {
                name : 'task_code', 
                type : 'string'
            },{
                name : 'lastname',  
                type : 'string'
        }]
});


var userStore = Ext.create('Ext.data.Store', {
    pageSize : $page_size,
    model    : 'User',
    autoLoad : true,
    proxy: {
        type: 'ajax',
        url: '$self?get_json=yes'
    },
    reader: {
            type : 'json',
            root : 'rows',
            totalProperty: 'totalCount'
            }
});
Ext.create('Ext.grid.Panel', {
    renderTo : divGrid,
    store    : userStore,
    width    : viewport_width,
    height   : viewport_height,
    title    : 'Application Users',
    columns  : [
        {
            text      : 'Task Name',
            width     : 250,
            sortable  : false,
            hideable  : false,
            dataIndex : 'lastname'
        },
        {
            text      : 'Task code',
            width     : 150,
            dataIndex : 'task_code',
            hidden    : false
        },
        {
            text      : 'Task code',
            flex      : 1,
            dataIndex : 'task_code'
        }
    ],
    dockedItems: [{
        xtype: 'pagingtoolbar',
        store: userStore,
        dock: 'bottom'
    }]
});

Here is the form of my data

{
"success": true,
"totalCount": 714, 
 "rows": [{            
    "task_code": "A15340",            
    "lastname" : "ENG020b PM FTD1 Test Travel"        
},{          
     "task_code": "A15290",           
    "lastname" : "ENG021a PM FTD2 Test Travel"        
},{           
    "task_code": "A15380",          
    "lastname" : "ENG022c PM FTD3 Test Travel"        
},{           
    "task_code": "A15400",           
    "lastname" : "ENG024b PM FFS1 Test Travel"
}
]}

[lucasguaru]

Maybe it's the reader that sould be inside the proxy.

var userStore = Ext.create('Ext.data.Store', {
    pageSize : $page_size,
    model    : 'User',
    autoLoad : true,
    proxy: {
        type: 'ajax',
        url: '$self?get_json=yes',
        reader: {
            type : 'json',
            root : 'rows',
            totalProperty: 'totalCount'
        }
    }
});

[sferg989]

That was it, Thank you