View Full Version : Strange error with grid grouping feature: Cannot read property 'addCls' of null

14 May 2014, 7:24 AM
Hi all, I added the group feature to my datagrid, and it works fine however I noticed a strange error every time the mouse cursor is over the first row: Uncaught TypeError: Cannot read property 'addCls' of null
Any help please!

15 May 2014, 8:49 AM
What version of Ext4 are you using?

Fixed in (EXTJS-10018)