Magento Articles and Tips for Developers

 
<?php
 
class Vendorname_Modulename_Block_Adminhtml_Modulename_Edit_Form_Renderer_Fieldset_Productgrid extends Varien_Data_Form_Element_Abstract
{
    protected $_element;
 
    public function getElementHtml()
    {
        return Mage::helper('core')->getLayout()->createBlock('modulename/adminhtml_modulename_edit_form_renderer_fieldset_product_grid')->toHtml();
    }
}

 
<?php
 
class Vendorname_Modulename_Block_Adminhtml_Modulename_Edit_Form_Renderer_Fieldset_Product_Grid extends Mage_Adminhtml_Block_Widget_Grid
{
 
    public function __construct()
    {
        parent::__construct();
        $this->setId('productsId');
        $this->setDefaultSort('id');
        $this->setUseAjax(true);
    }
 
    protected function _prepareCollection()
    {
 
        $collection = Mage::getModel('catalog/product')->getCollection()
            ->addFieldToFilter('status', Mage_Catalog_Model_Product_Status::STATUS_ENABLED)
 
        $this->setCollection($collection);
 
        return parent::_prepareCollection();
    }
 
    protected function _prepareColumns()
    {
        $this->addColumn('grid_id', array(
            'header'    => Mage::helper('modulename')->__(''),
            'index' => 'entity_id',
            'type' => 'radio',
            'html_name' => 'grid_id',
            'align' => 'center',
            'filter' => false,
        ));
 
        $this->addColumn('id', array(
            'header' => Mage::helper('modulename')->__('ID'),
            'sortable' => true,
            'width' => '60px',
            'index' => 'entity_id'
        ));
 
        $this->addColumn('product_name', array(
            'header' => Mage::helper('modulename')->__('Name'),
            'index' => 'name'
        ));
 
        $this->addColumn('sku', array(
            'header' => Mage::helper('modulename')->__('SKU'),
            'width' => '120px',
            'index' => 'sku'
        ));
 
        return parent::_prepareColumns();
    }
 
    public function getGridUrl()
    {
        return $this->getUrl('*/*/product', array('_current' => true));
    }
}

 
<?php
 
class Vendorname_Modulename_Block_Adminhtml_Modulename_Edit_Form extends Mage_Adminhtml_Block_Widget_Form
{
    protected function _prepareForm()
    {
	...
 
        $fieldsetData->addType('product_grid', 'Vendorname_Modulename_Block_Adminhtml_Modulename_Edit_Form_Renderer_Fieldset_Productgrid');
 
        $fieldsetData->addField('product_id_grid', 'product_grid', array(
            'name'      => 'product_id_grid',
            'label'     => Mage::helper('modulename')->__('Product'),
            'class'     => 'required-entry',
            'required'  => true,
            'onclick' => "",
            'onchange' => "",
            'disabled' => false,
            'readonly' => false,
            'tabindex' => 1
        ));