Entity Framework - how to select properties from two database class to another class - entity-framework

Question

I Made a new notMapped class "BuyingHistory", that have some property (not all) of two database tables
how to fill this class with entity? I made the conditions, but how do I select the properties to a list? (I know how to do it for one property but not for a list)
IQueryable<BuyingHistory> _buyingList =
_db.Orders
.Join(_db.EventPages
,o => o.EventID
,e => e.ID
,(o, e) => new { orders = o, events = e })
.Where(o => o.orders.UserID == LS.CurrentUser.ID)
.Select( // I don't know how to continue
it's work in this way bellow, but how can I do it in one command like the example above
var _List =
_db.Orders
.Join(_db.EventPages
, o => o.EventID
, e => e.ID
, (o, e) => new { orders = o, events = e })
.Where(o => o.orders.UserID == LS.CurrentUser.ID).ToList();
List<BuyingHistory> _buyingList = new List<BuyingHistory>();
foreach (var item in _List)
{
_buyingList.Add(new BuyingHistory()
{
CreatedDate = item.orders.CreatedDate,
EventName = item.events.Title,
NumberOfTickets = item.orders.TicketNumber,
OrderID = item.orders.ID,
Status = item.orders.Status.ToString(),
Total = item.orders.TicketNumber
});
}

Answer 1

I'd use query syntax to begin with, and then do the query like so:
from ord in _db.Orders
join evt in _db.EventPages on ord.EventID equals evt.ID
where ord.UserID == LS.CurrentUser.ID
select new BuyingHistory
{
CreatedDate = ord.CreatedDate,
EventName = evt.Title,
NumberOfTickets = ord.TicketNumber,
OrderID = ord.ID,
Status = ord.Status.ToString(),
Total = ord.TicketNumber
})
If you have EF version 6 the ToString() won't throw exceptions. If not, you have to change the type of BuyingHistory.Status into the type coming from the database.