Grid groupingsummary header localize

[info@ferraresegroup.com]

Hi all,
in Ext.grid.Panel when i use features 'groupingsummary' option in header are display only in english.
Ex: Group by this field.
How can i change this option in other language?
Thanks.
Luca F.

40255

[dawesi]

use a locale:
http://dev.sencha.com/deploy/ext-4.0.0/examples/locale/multi-lang.html