小编gow*_*wri的帖子

致命错误:在D:\ Program Files\wamp\www\magento\app\code\core\Mage\Adminhtml\Block\Widget\Grid\Column.php上的非对象上调用成员函数setColumn() 291

在管理网格部分我使用此列详细信息

protected function _prepareColumns()
{
    $this->addColumn('giftcard_id', 
        array(
            'header'    => 'ID',
            'align'        => 'right',
            'width'        => '50px',
            'index'        => 'giftcard_id',
        ));

    $this->addColumn('giftcard_id', 
        array(
            'header'    => 'Detail',
            'align'        => 'center',
            'width'        => '150px',
            'renderer'  => 'giftcard/adminhtml_giftcard_idrenderer',
            'index'        => 'giftcard_id',
        ));



    $this->addColumn('created_time', array(
        'header'    => 'Creation Time',
        'align'     => 'left',
        'width'     => '120px',
        'type'      => 'date',
        'default'   => '--',
        'index'     => 'created_time',
    ));

    $this->addColumn('update_time', array(
        'header'    => 'Update Time',
        'align'     => 'left',
        'width'     => '120px',
        'type'      => 'date',
        'default' …