How to add content limit in custom grid column in magento 2.is anyone have any idea

Question

How to add content limit in custom grid column in magento 2.is anyone have any idea..ie nothing string limit in column i found below like this we can do it in magento 1

$this->addColumnAfter('addons', array(
            'header' => Mage::helper('sales')->__('Addons'),
            'filter'    => false,
            'sortable'  => false,            
            'index' => 'addons',
            'type'  => 'text',
            'string_limit'  => '500', /* added for content limit */

        ), 'billing_name'); 

Answer 1

According to below code you can use string_limit in Magento2 like as you are using in Magento1 with Render

namespace Magento\Backend\Block\Widget\Grid\Column\Renderer;

/**
 * Backend Grid Renderer
 */
class Longtext extends \Magento\Backend\Block\Widget\Grid\Column\Renderer\AbstractRenderer
{
    /**
     * Render contents as a long text
     *
     * Text will be truncated as specified in string_limit, truncate or 250 by default
     * Also it can be html-escaped and nl2br()
     *
     * @param \Magento\Object $row
     * @return string
     */
    public function render(\Magento\Object $row)
    {
        $truncateLength = 250;
        // stringLength() is for legacy purposes
        if ($this->getColumn()->getStringLimit()) {
            $truncateLength = $this->getColumn()->getStringLimit();
        }
        if ($this->getColumn()->getTruncate()) {
            $truncateLength = $this->getColumn()->getTruncate();
        }
        $text = $this->filterManager->truncate(parent::_getValue($row), array('length' => $truncateLength));
        if ($this->getColumn()->getEscape()) {
            $text = $this->escapeHtml($text);
        }
        if ($this->getColumn()->getNl2br()) {
            $text = nl2br($text);
        }
        return $text;
    }
}