/app/code/local/Magiccart/Shopbrand/Block/Adminhtml/Brand/Grid.php

<?php

class Magiccart_Shopbrand_Block_Adminhtml_Brand_Grid extends Mage_Adminhtml_Block_Widget_Grid

{

	public function __construct()

	{

		parent::__construct();

		$this->setId('brandGrid');

		$this->setDefaultSort('brand_id');

		$this->setDefaultDir('ASC');

		$this->setSaveParametersInSession(true);

	}



	public function _prepareCollection() // Convert string stores id

	{

		$collection = Mage::getModel('shopbrand/brand')->getCollection();

     	 foreach($collection as $link) {

        	if($link->getStores() && $link->getStores() != 0 ){

        		$link->setStores(explode(',',$link->getStores()));

        	}

        	else{

        		$link->setStores(array('0'));

        	}

        }

		$this->setCollection($collection);

		return parent::_prepareCollection();

	}



    protected function _filterStoreCondition($collection, $column){

    	if (!$value = $column->getFilter()->getValue()) {

    		return;

    	}

    	$this->getCollection()->addStoreFilter($value);

    }



	public function _prepareColumns()

	{

		$this->addColumn('brand_id', array(

			'header'	=> Mage::helper('shopbrand')->__('ID'),

			'align'		=> 'right',

			'width'		=> '50px',

			'index'		=>'brand_id',

		));



		$this->addColumn('title', array(

			'header'	=> Mage::helper('shopbrand')->__('Title'),

			'align'		=> 'left',

			'index'		=> 'title',

		));



		$this->addColumn('urlkey', array(

			'header'	=> Mage::helper('shopbrand')->__('URL Key'),

			'align'		=> 'left',

			'index'		=> 'urlkey',

		));



		$this->addColumn('image', array(

			'header'	=> Mage::helper('shopbrand')->__('Brand Image'),

			'align'		=> 'left',

			'type'		=> 'image',

			'renderer'	=> 'Magiccart_Shopbrand_Block_Adminhtml_Brand_Render_Image',

			'widht'		=> 64,

			'index'		=> 'image',

		));



       if (!Mage::app()->isSingleStoreMode()) {

    $this->addColumn('stores', array(

        'header'        => Mage::helper('shopbrand')->__('Store View'),

        'index'         => 'stores',

        'type'          => 'store',

        'store_all'     => true,

        'store_view'    => true,

        'sortable'      => true,

        'filter_condition_callback' => array($this,'_filterStoreCondition'),

    ));

}



		$this->addColumn('porder', array(

			'header'	=> Mage::helper('shopbrand')->__('Order'),

			'width'		=> '50px',

			'index'		=> 'order',

		));

		

		$this->addColumn('status', array(

			'header'	=> Mage::helper('shopbrand')->__('Status'),

			'align'		=> '80px',

			'index'		=> 'status',

			'type'		=> 'options',

			'options'	=> array(

				1	=> 'Enabled',

				2	=> 'Disable',

			),

		));



		$this->addColumn('action', array(

			'header'	=> Mage::helper('shopbrand')->__('Action'),

			'width'		=> '100px',

			'type'		=> 'action',

			'getter'	=> 'getId',

			'actions'	=> array(

								array(

									'caption'	=> Mage::helper('shopbrand')->__('Edit'),

									'url'		=> array('base'	=> '*/*/edit'),

									'field'		=> 'id'

									)

								),

			'filter'	=> false,

			'sortable'	=> false,

			'index'		=> 'stores',

			'is_system'	=> true,



		));



		$this->addExportType('*/*/exportCsv', Mage::helper('shopbrand')->__('CSV'));

		$this->addExportType('*/*/exportXml', Mage::helper('shopbrand')->__('XML'));



		return parent::_prepareColumns();

	}



	public function _prepareMassaction()

	{

		$this->setMassactionIdField('brand_id');

		$this->getMassactionBlock()->setFormFieldName('shopbrand');



		$this->getMassactionBlock()->addItem('delete', array(

			'label'		=> Mage::helper('shopbrand')->__('Delete'),

			'url'		=> $this->getUrl('*/*/massDelete'),

			'confirm'	=> Mage::helper('shopbrand')->__('Are you sure?')

		));

		

		$statuses = Mage::getSingleton('shopbrand/status')->getOptionArray(); // option Action for change status

		array_unshift($statuses, array('label' => '', 'value' => ''));

		$this->getMassactionBlock()->addItem('status', array(

			'label'		=> Mage::helper('shopbrand')->__('Change status'),

			'url' 		=> $this->getUrl('*/*/massStatus', array('_current' => true)),

			'additional'=> array(

				'visibility' => array(

					'name'	=> 'status',

					'type'	=> 'select',

					'class'	=> 'required-entry',

					'label' => Mage::helper('shopbrand')->__('Status'),

					'values'=> $statuses

				)

			)

		));



		return $this;

	}



	public function getRowUrl($row)

	{

		return $this->getUrl('*/*/edit', array('id' => $row->getId()));

	}

}