Hello Makla,
There are three different modes of the button group widget: “default”, “radio” and “checkbox”. You can see them in action in the demo Button Group. You can get the active button(s) only when the mode is “checkbox” or “radio” with the method getSelection. If the mode is “checkbox” or “radio”, there is a visual indication of the active button(s), but not if the mode is “default”, because there is no active button in that case.
Please refer to the jqxButtonGroup API Documentation (fourth tab) for more information.
Best Regards,
Dimitar
jQWidgets team
http://www.jqwidgets.com/