Zayin Krige

$provider_item_grid = new datagrid_library();
$provider_item_grid->label = 'My grid title';

$provider_item_grid->per_page = 100000;

$provider_item_grid->column('real_value','Denomination Face Value')->callback('format');
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function format($row)
{
    $avalue = $row['real_value'];
    $obj =& get_instance();
    return currency_format($avalue);
}

$provider_item_grid->column('item_description','Denomination')->url(site_url('service_provider_items/?show={service_provider_item_id}'),'');

$provider_item_grid->column('item_description','Denomination', true);