Magento – How i can create custom filter grid in front end magento 2

try adding a custom filter callback:

in your grid:

$this->addColumn('url', array(
    'header'   => Mage::helper('companymodule')->__('Has Website'),
    'align'    => 'left',
    'index'    => 'url',
    'renderer' => new Company_Module_Block_Adminhtml_Module_Grid_Renderer_HasUrl(),
    'type'      => 'options',
    'options'   => Mage::getSingleton('companymodule/hasurl')->getOptionArray(),
    'filter_condition_callback' => array($this, '_filterHasUrlConditionCallback')
));

and add a method like this:

protected function _filterHasUrlConditionCallback($collection, $column)
{
    if (!$value = $column->getFilter()->getValue()) {
        return $this;
    }
    if (empty($value)) {
        $this->getCollection()->getSelect()->where(
             "main_table.url IS NULL");
    }
    else {
        $this->getCollection()->getSelect()->where(
             "main_table.url IS NOT NULL");
    }

    return $this;
}

note it's not tested; you may have to check for empty rather than null on the database; also make sure you have the correct table alias (if URL is not on the main_table).

You will need to override a class Mage_Adminhtml_Block_Sales_Order_Create_Search_Grid.

Go to your config.xml and add this

<global>
    <blocks>
        ......................          
        <adminhtml>
            <rewrite>
                <sales_order_create_search_grid>Mage_Adminhtml_Block_Sales_Order_Create_Search_Grid</sales_order_create_search_grid>
            </rewrite>
        </adminhtml>
    </blocks>
.............
</global>

Now create a file Namespace/ModuleName/Block/Adminhtml/Sales/Order/Create/Search/Grid.php and have this code:

<?php
class Namespace_ModuleName_Block_Adminhtml_Sales_Order_Create_Search_Grid extends 
    Mage_Adminhtml_Block_Sales_Order_Create_Search_Grid
{

/**
 * Prepare collection to be displayed in the grid
 *
 * @return Mage_Adminhtml_Block_Sales_Order_Create_Search_Grid
 */
protected function _prepareCollection()
{
    $attributes = Mage::getSingleton('catalog/config')->getProductAttributes();
    /* @var $collection Mage_Catalog_Model_Resource_Product_Collection */
    $collection = Mage::getModel('catalog/product')->getCollection();
    $collection
        ->setStore($this->getStore())
        ->addAttributeToSelect($attributes)
        ->addAttributeToSelect('sku')
        ->addStoreFilter()
        ->addAttributeToFilter('type_id', array_keys(
            Mage::getConfig()->getNode('adminhtml/sales/order/create/available_product_types')->asArray()
        ))
        ->addAttributeToSelect('gift_message_available')
        //our new field.
        ->addAttributeToSelect('type_id');

    Mage::getSingleton('catalog/product_status')->addSaleableFilterToCollection($collection);

    $this->setCollection($collection);
    return parent::_prepareCollection();
}


protected function _prepareColumns()
    {
        parent::_prepareColumns();
        $this->addColumn('type',
          array(
            'header'=> Mage::helper('sales')->__('Type'),
            'width' => '60px',
            'index' => 'type_id',
            'type'  => 'options',
            'options' => Mage::getSingleton('catalog/product_type')->getOptionArray(),
      ));
        return parent::_prepareColumns();
    }

}

This will add a product type in grid.

Hope this helps. Good luck.