ajshort/silverstripe-gridfieldextensions — pull request #2 by Zauberfisch (2013-02-08 09:16:42+00:00)
Title: ENHANCEMENT: added GridFieldEditableAddNewButton to allow in line adding of new rows

Takes the already existing add button and adds a URL handler to create a new record, render it as gridfield row and return it.

tested and working in has_many relations, not tested elsewhere yet