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:

checkcolumn.png

Thanks!!!