Entity framework foreign table not accessible in xaml code behind

Question

I am attempting to pull an IQueryable from my DomainService class to my XAML code behind using RIA services.

The DomainService pulls from a BLL, which pulls from a DAL, which gets it from EF.

I cannot seem to access the foreign table in the XAML, but I can access it just fine in the DomainService method.

The DomainService method looks like this...

    public IQueryable<MenuHeader> GetMenuHeaders()
    {
        BusinessLogic.Employee blEmployee = new BusinessLogic.Employee();

        int employeeId = blEmployee.GetEmployeeIdFromUserName(HttpContext.Current.User.Identity.Name);
        var menuHeaders = blEmployee.GetEmployeeMenuHeaders(employeeId);
        // This works here!
        var menuHeaderItems = from mh in menuHeaders
                              select mh.MenuHeaderItems;
        return menuHeaders;
    }

In the XAML code behind, I call this method here:

...

EmployeeContext employeeContext = new EmployeeContext();

EntitySet<MenuHeader> menuHeaders = employeeContext.MenuHeaders;            
employeeContext.Load(employeeContext.GetMenuHeadersQuery()).Completed += (s, e) =>
    {
        // This does NOT work here!
        var menuHeaderItems = from mh in menuHeaders
                              select mh.MenuHeaderItems; // <-- Not found
    };

...

How can I get this table up to my XAML code so I can databind to it?

Answer 1

The problem here was that my Entity Model is not a part of my ASP.Net/RIA app. It is only referenced in.

Since it is a reference, the DomainService won't auto-generate the metadata. I had to manually create the metadata so that Silverlight knew what to expect.