Linq To實體加入問題

Question

您如何通過Linq to Entities進行這樣的聯接？

var resultA = client.GetFirstList().ToList();                   
var resultB = client.GetSecondList().ToList();

var d = (from b in resultB
         join a in resultA on b.AnICollection.Select(x => x.TypeId) equals a.TypeId 
select b)

Answer 1

您應該能夠像下面這樣查詢它：

from a in context.Customers
join b in context.Orders
on a.CustomerID equals b.CustomerID
join c in context.AnICollection
on b.TypeID equals c.TypeID
select b