Linq query with customer order by to an anonymous type

gistfile1.cs

XdsServicesDataContext xds = new XdsServicesDataContext();
var query = xds.SXAXDSCustomers.AsEnumerable().OrderBy(c => c.Oid, new OidComparer())
    .Select( x =>
        new {
            Name = x.Name,
            Oid = x.Oid,
            UserId = x.UserId,
            AllowAutoPatientRegistration = x.AllowAutoPatientRegistration,
            MembershipUsersCollection = Membership.FindUsersByName(x.UserId)
        }
    );