This works:

(from o in Entities.WorkOrderSet
 select o)
.Where(MyCustomMethod);

This does not:

(from o in Entities.WorkOrderSet
 select new { WorkOrder = o })
.Where(o => MyCustomMethod(o.WorkOrder);

I understand why the second doesn't work - but why in the world does the first work!? Shouldn't I get a "custom method not recognized?"

For reference, here is MyCustomMethod

public bool MyCustomMethod(WorkOrder workOrder)
{
    return !workOrder.WorkOrderNum.StartsWith("A", StringComparison.CurrentCultureIgnoreCase);
}