Silverlight: binding an observable collection to different usercontrols conditionally

Answer 1

Interesting. I've solved a similar dilemma by using an IValueConverter in an unusual way: I created a "VisibilityConverter" that tells a control whether it ought to appear. In the case of your example you would have two of them: one Convert method would return ((PersonInfo)o).Name == "Joe" ? Visibility.Visible : Visibility.Collapsed; and the other would do the opposite. Then bind UserControl1's visibility to one VisibilityConverter and bind UserControl2's visibility to the other and walla, they swap out based on the data.