Prism4: Creating catalog from xaml CreateFromXaml doesn't compile - silverlight-4.0

Question

I'm developing with Silverlight 4 and Prism 4.
I'm also using Unity as my injection container.
I'm trying to create the module catalog from xaml, but I get this error "IModuleCatalog does not contain a definition of CreateFromXaml...".
My code snippet is:
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Practices.Prism.UnityExtensions;
using Microsoft.Practices.ServiceLocation;
using Microsoft.Practices.Prism.Modularity;
using Microsoft.Practices.Prism.MefExtensions;
namespace MyModularityProject {
public class MyBootStrapper : UnityBootstrapper {
protected override DependencyObject CreateShell() {
return ServiceLocator.Current.GetInstance<Shell>();
}
protected override void InitializeShell() {
base.InitializeShell();
Application.Current.RootVisual = (UIElement)Shell;
}
protected override IModuleCatalog CreateModuleCatalog() {
// This is the isntruction that doesn't compile
return ModuleCatalog.CreateFromXaml(new
Uri("/MyProject.Silverlight;component/ModulesCatalog.xaml",
UriKind.Relative));
}
}
}
What could I be missing here?

Answer 1

The reason that you need to add the full path to the ModuleCatalog type is that there is a ModuleCatalog property within the Bootstrapper base class that UnityBootstrapper inherits. If you don't qualify the name, you are essentially calling an accessor on a property which returns IModuleCatalog. The interface definition does not include this function.