LINQ to Entities - where..in clause with multiple columns

Question

I\'m trying to query data of the form with LINQ-to-EF:

class Location {
    string Country;
    string City;
    string Address;
    …
}

by

Answer 1

var result = from loc in Location
             where keys.Contains(new {
                 Country=l.Country, 
                 City=l.City, 
                 Address=l.Address
             }

would need to be:

var result = from loc in Location
             where keys.Contains(new {
                 Country=loc.Country, 
                 City=loc.City, 
                 Address=loc.Address
             }
             select loc;