c# - How to query with a join with linq to sql -

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i'm trying query gifts given term categories table. entity framework created bridge table connect "gift" "giftcategroies". query have yielded no results.

from dbcontext:

public dbset<gift> gifts { get; set; } public dbset<giftcategory> categories { get; set; }

the 2 entities created:

public class gift {     public int id { get; set; }     public string name { get; set; }     public icollection<giftcategory> categories { get; set; }     public int rating { get; set; } }  public class giftcategory {     public int id { get; set; }     public string name { get; set; }     public string description { get; set; }     public icollection<gift> gifts { get; set; } }

here query try , fetch gifts given giftcategory term. no results returned. i'm not sure if need join type of query.

var model =     gifts in db.gifts     join giftcategory in db.categories on gifts.id equals giftcategory.id     giftcategory.name.contains(searchterm)     select gifts;

you should use navigation properties instead of joins:

var gifts = (from c in db.categories              g in c.gifts              c.name.contains(searchterm)              select g).distinct().tolist();

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