EF DbContext. How to avoid caching?

Question

Spent a lot of time, but still cann\'t understand how to avoid caching in DbContext.

I attached below entity model of some easy case to demonstrate what I mean.

Answer 1

You can use the AsNoTracking method on your query.

var res = (from b in ctx.Buildings.Where(x => x.ID == 1)
         select new
         {
            b,
            flats = from f in b.Flats
                    select new
                    {
                       f,
                       people = from p in f.People
                       where p.Archived == false
                       select p
                    }
         }).AsNoTracking().AsEnumerabe().Select(x => x.b).Single();

I also want to note that your AsEnumerable is probably doing more harm than good. If you remove it, the Select(x => x.b) will be translated to SQL. As is, you are selecting everything, then throwing away everything but x.b in memory.