Renders and updates the HTML representation of a group of radio buttons.
items-- a collection of data sources for
As this encompasses an entire group, it must provide a way to determine
which radio button is the target of an event. The
does exactly this, and all
radioGroupRenderDelegates must support it.
Also, as it would be low-performance to update any but the changed radio button, there is a method to update a specific index.
Defined in: radio_group.js