Gets or sets the currently selected group in Accordion directive.
|name||String||The value of name attribute of the Accordion directive|
|group (optional)||Object||The group to be selected|
If there is no specified group, this property returns the currently selected group. Otherwise does not return a value.
This method is part of IntegralUIAccordionService.
An group can also become selected using the selected-group attribute of Accordion directive. In this case only afterSelect event will be fired.
Supported in: v1.0.