Form - Fabians small Magento world

Grid Loader doesn't hide after request finished

I had today the problem, that the loader doesn't hide after a a ajax response is loaded: My problem is the following error: "TypeError: Cannot read property 'down' of null at Object.bindFieldsChange (http://demo.dev/js/mage/adminhtml/grid.js:280:63) at Object.initGrid (http://demo.dev/

Admin

Tab is rendered in left block instead of content

I want to add tabs to a custom form in the backend. There are a couple of great tutorials how to add tabs, like from Inchoo or Erfan Imani. But I wanted this: And got this: The problem is simple - if you know it (costs me an hour and

Magento

Parameters of Varien_Data_Form?

Why do I write this? Because I had the problem a few hours ago that no form was rendered in my backend formular. And as a few of you may know, the FireGento GermanSetup Team met today. Noone of us knew instantly why. So here are a few tipps. HTML