Gridview with multiple sources/propertypaths?

Question

All,

I'm developing an app that will show users a dashboard of resources on their server.

Broadly I have 3 main classes involved in the data model: Server, Domain, RegisteredResource. These each extend a 'SmashObject' base class.

The Server object is acting as a container and contains several observable collections like so:

private ObservableCollection<Domain> _allDomains = new ObservableCollection<Domain>();
        public ObservableCollection<Domain> AllDomains
        {
            get { return this._allDomains; }
        }

        private ObservableCollection<RegisteredResource> _allResources = new ObservableCollection<RegisteredResource>();
        public ObservableCollection<RegisteredResource> AllResources
        {
            get { return this._allResources; }
        }

In my UI I want to be able to show both the Domains and Resources in a single Gridview - so I can still use semantic zoom on it. As each extend the same base class I could create a new collection of type <SmashObject> and combine the two sets, however the PropertyPaths will be different for each main type.

So does anyone have any advice for how to approach this problem? Is there a way to have multiple GridViews in a single semantic zoom for example? Is there a way of 'typeof' checking in Xaml?

All suggestions appreciated.

Cheers,

Chris