Checkcolumn problem

Hi,

I have a little problem with the checkcolumn in a Grid Panel, the checkboxes not appear, my code is:

Code:

---

Ext.define('vegos.view.users.gridRoles' ,{        extend: 'Ext.grid.Panel',
        alias : 'widget.gridroles',
        store:{
                fields: ['name',
                {
                        name: 'active',
                        type: 'bool'
                }
                ],
                data: [
                        {name: "heavy metal", active: true},
                        {name: "Jazz", active: false},


        ]
        },
        columns: [
        {
                header: 'Role Name',
                dataIndex: 'name'
        },
        {
                xtype: 'checkcolumn',
                header: 'Active',
                dataIndex: 'active'
        }
        ]
});

---

and it looks like this:

Attachment 36166

Thanks!!!

Perhaps you forgot to include "CheckHeader.css"

Yes, I was not included the CheckHeader.css, now works totally perfect.

Thanks!!!!