How to group items in DropDownCheckBox

Sep 10, 2012 at 7:32 PM

I have the DDCB datasource set against a query from my database. Assuming the datasource is a list of artists this is how i would like to display it in this control

Select All
Michael Jackson
Off the wall

Thriller
Bad
Dangerous
History
Eminem
Slim Shady
Curtain Call
The Marshall Mathers
....

So the user should be able to  Select all to select every artist and album, or select an artist and only their album or even select two or more artists and it would select their albums. Is this possible? If so any examples?

Thanks