Question

I asked very similar question here
Entity framework – select by multiple conditions in same column – referenced table

Now relationship is Many to Many.
So I have 3 tables: order, items and orderItem (items is a Junction table)
Again.. I want to select all orders that have at least one orderItem with price 100 and at least one orderItem with price 200

I really don’t know how to edit this for that scenario.

var orders = from o in kontextdbs.orders
             select o;
foreach(int value in values)
{    
      int tmpValue = value;
      orders = orders.Where(x => kontextdbs.order_item.Where(oi => x.id == oi.order_id)
} 

Answer 1

Here is the modified version

foreach(int value in values)
{    
      int tmpValue = value;
      orders = orders.Where(x => (from oi in kontextdbs.order_item
                                 join i in kontextdbs.items on oi.item_id equals i.id
                                 where x.id == oi.order_id
                                 select i).Any(y => y.price == tmpValue));    
}