Magento: Add radio/checkbox custom column in Admin Grid

Magento grids are very useful for displaying/filtering and sorting data. Their flexibility is endless, you can customize them in any way. One may want to add a new radio button or checkbox column for rapid marking.

Here is how you can add custom checkbox or radio button column in Magento admin grid.

Radio button:

 $this->addColumn('some_id', array( 'header_css_class' => 'a-center', 'header' => Mage::helper('adminhtml')->__('Some Header'), 'type' => 'radio', 'html_name' => 'items[]', 'align' => 'center', 'value' => array('1') )); 

Checkbox:

 $this->addColumn('some_id', array( 'header_css_class' => 'a-center', 'header' => Mage::helper('configurator')->__('Some Header'), 'index' => 'some_id', 'type' => 'checkbox', 'align' => 'center', 'values' => array('1', '2') )); 

Further, in Form.php you can add this below code to have by default behavior and onclick behaviour:

 $fieldset->addField('some_id', 'checkbox', array( 'label' => Mage::helper('magentostudy_news')->__('Featured'), 'name' => 'featured', 'value' => 1, 'checked' => ($model->getFeatured() == 1) ? 'true' : '', 'onclick' => 'this.value = this.checked ? 1 : 0;', 'disabled' => false, 'readonly' => false, ));