Uncaught ReferenceError: massactionJsObject is not defined

Question

I am adding new logic to Affiliate module from MageStore. I want add MassAction for enabling/disabling coupons code in accounts. But when I add method _prepareMassaction, I have error when try disable coupon:

Uncaught ReferenceError: couponGrid_massactionJsObject is not defined is not defined

Answer 1

Add below in Grid block of your module where you are facing the issue.

 protected function getAdditionalJavascript() {
       return 'window.couponGrid_massactionJsObject = couponGrid_massactionJsObject;';
//'window.{gridId}_massactionJsObject = {gridId}_massactionJsObject;';
    }

Answer 2

I found solution after reading
Mass action in widgets

I created custom class and override Mage_Adminhtml_Block_Widget_Grid_Massaction and changed method getJavaScript(). I removed var and it started work