http://blogs.msdn.com/mthalman/archive/2008/09/04/wpf-data-binding-with-radiobutton.aspxI recently was building a WPF solution where I had a couple RadioButtons that each represented a particular state of the data. Each RadioButton had its IsChecked dependency property bound to a property on my DataContext. And they were each bound to aen-USCommunityServer 2.1 SP1 (Build: 61025.2)