How do I get correct ajax url for backend?

Question

I am trying to make an ajax call to reload the information on the category edit page.

I know the url I am trying to create is catalog_category/edit, but $this->getUrl('catalog_category/edit') returns catalog_category/index.

Why is it returning index instead of edit? How do I get the correct url for ajax calls? Or do I need to manually specify the full url, in which case what is the best way to get the form key?

Answer 1

URL params should be in the form of route name (from config xpath) + controller path + action. Try

$this->getUrl('adminhtml/catalog_category/edit')

or

Mage::helper('adminhtml')->getUrl('adminhtml/catalog_category/edit')`