Linq join on two values

Question

Suppose I have a list of {City, State}. It originally came from the database, and I have LocationID, but by now I loaded it into memory. Suppose I also have a t

Answer 1

It seems to me that you need this:

var establishments =
    from r in restaurants
    join l in locations.Where(x => x.LocationId == id)
        on new { r.City, r.State } equals new { l.City, l.State } into gls
    select r;