I’ve been working on a Flex radio button component that will allow users to select nested options. The control accepts an XMLList as the data source for the button options, and expands to show nested buttons beneath selected options according the data passed in to it. The nest level of radio buttons is essentially infinite.
The best way to understand it is to take a look.
For the moment, this is only a proof-of-concept version of the control. The control has 2 values to indicate selected values. One is bottomValue which holds only the value of the bottom-most selected radio button. The other is fullValue which holds a comma separated list of values beginning with the top-most value and ending with the bottom-most value.
With this version of the component, you can also pass in an initial bottomValue and the control will select all of the parent radio buttons recursively and accurately fill in the fullValue field.
Flex developers: Check out the control and let me know what you think! If there is significant interest, I’ll work on revising the component to feel more like a native Flex Framework control and add some additional features to it. It’s usable as is, but needs work to polish it up before it can used efficiently and reliably in a live Flex application.
Adobe Flex