カスタム モジュールを作成します...続きを読むマジェントオーダーグリッド/
app/code/local/RWS/OrderGridOptions/etc/config.xml 内
<global>
    <blocks>
       <adminhtml>
          <rewrite>
              <sales_order_grid>RWS_OrderGridOptions_Block_Adminhtml_Sales_Order_Grid</sales_order_grid>
          </rewrite>
       </adminhtml>
    </blocks>
</global>
app/code/local/RWS/OrderGridOptions/Block/Adminhtml/Sales/Order/Grid.php に作成します。
(app/code/core/Mage/Adminhtml/Block/Sales/Order/Grid.php を参照)
作成関数 _prepareColumns()
$this->addColumn('product_options', array(
    'header'    => Mage::helper('order')->__('Options'),
    'width'     => '150',
    'index'     => 'product_options'
    'renderer' = new RWS_OrderGridOptions_Block_Adminhtml_Renderer_Data()  // added this line
));
続きを読む @ http://www.magentocommerce.com/boards/viewthread/192232/#t239222
app/code/local/RWS/OrderGridOptions/Block/Adminhtml/Renderer/Data.php 内
class RWS_OrderGridOptions_Block_Adminhtml_Renderer_Data extends Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Action
 {
    public function render(Varien_Object $row)
     {
         return $this->_getValue($row);
     }
     public function _getValue(Varien_Object $row)
     {
         $val = $row->getData($this->getColumn()->getIndex());  // row value
         $array = unserialize($val);
         //loop thru the $array and create a format string 
         //
         $format_val = $array['xyx'] . ' ' . $array['abc'];
         return $format_val;
     }
 }