c# - How to avoid converting iQueryable to a List? -

i have following (working) code:

 list<location> alllocations = new list<location>();  using (mycontext context = new mycontext())  {      login currentlogin = getcurrentlogin(context);      if (currentlogin != null)      {          foreach (var customer in currentlogin.customers)          {              alllocations.addrange(customer.locations);          }      }  }  return alllocations.asqueryable(); 

mycontext , objects live within entity framework. customers , locations icollection<>-properties

this code works expected, returning locations users' customers

but can see, add entity customer.locations list.

at end of function return generated list iqueryable able continue using linq-expressions on result.

because of performance reasons skip list<>-step , stay inside iqueryable

is possible?

change list<location> alllocations iqueryable<location> alllocations.

then can alllocations = currentlogin.customers.selectmany(c => c.locations).asqueryable().