Re: Procki w MVC 1.0 i LINQ

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#21194

From: Łukasz Kuryło
Date: Thu, 03 Dec 2009 18:47

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>             public IQueryable<Book> Pokaz(int bookID)
>             {
>                 int ? outputParameter = bookID;
>                // bookID = 1;
>                 return from bookdetail in db.BookDetail(ref
> outputParameter)
>                        select db.BookDetail;
>             }

return from b in db.BookDetail
where b.bookID==bookID
select b //albo new <jakis obiekt> i mapujesz do niego obiekt book
pobrany przez linq


> Wiesz może jak to obejść? Próbowałem już select
> db.BookDetail.AsQueryable(); ale coś nie działa.

A skoro pobierasz tylko jedną książkę (bo zakładam, że bookID jest
unikalny), to iqueryable jest zbędne. Oczywiście zależy to od Twojego
sposobu pracy. Ja po prostu zwracam jeden konkretny obiekt. W moim
kodzie ta metoda wyglądałaby tak:

 public Book Pokaz(int bookID)
             {
var result=from b in db.BookDetail
where b.bookID==bookID
select new Book{
 bookID=b.bookID //i reszte
};

return result.FirstOrDefault();
             }

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From: Łukasz Kuryło <lszk86@gmail.com>
Newsgroups: alt.pl.comp.lang.csharp
Subject: Re: Procki w MVC 1.0 i LINQ
Date: Thu, 3 Dec 2009 10:47:47 -0800 (PST)
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