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POJoin LINQ with a List<> in select new
 

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  1. POJoin LINQ with a List<> in select new
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    <p>hi first time im asking here so il try to do it correctly</p> <p>i have a problem im making a shopping basket and im nearly there but always a but</p> <p>what i want to have is something like this</p> <pre><code>List&lt;HKurv&gt; KurvInnhold = (List&lt;HKurv&gt;)Session["KurvInnhold"]; DataClasses1DataContext db = new DataClasses1DataContext(); if (Session["KurvInnhold"] != null) { var query = from a in db.Cabinets from b in db.Commodities from e in db.sArticleNumbers from d in KurvInnhold where d.VareKjøpt.Contains(e.ArtNum) &amp;&amp; a.ArticleNumberID == e.ID &amp;&amp; a.ArticleNumberID == b.ArticleNumberID select new { BestiltAntall = d.AntallValgt, Price = b.Price, ModelName = a.ModelName, }; Handlekurv1.DataSource = query; Handlekurv1.DataBind(); } </code></pre> <p>But it does not allow for usage of db and list&lt;> in same query</p> <p>Solved! Modified magnus's answer</p> <pre><code> var kjopKollonne = from p in KurvInnhold select p.VareKjøpt; var query1 = (from a in db.Cabinets from b in db.Commodities from e in db.sArticleNumbers where kjopKollonne.Contains(e.ArtNum) &amp;&amp; a.ArticleNumberID == e.ID &amp;&amp; a.ArticleNumberID == b.ArticleNumberID select new { ArtNum = e.ArtNum, Price = b.Price, ModelName = a.ModelName, }).ToList(); var query2 = from a in query1 join b in KurvInnhold on a.ArtNum equals b.VareKjøpt select new { BestiltAntall = b.AntallValgt, Price = a.Price, ModelName = a.ModelName, }; Handlekurv1.DataSource = query2; Handlekurv1.DataBind(); </code></pre>
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    1. USThomas Andreè Lian
    1. USThomas Andreè Lian
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    1. CO"BestiltAntall" means "Nr Of Orders" right? Are you sure you dont need a count on the antall2 collection?
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      1. USMagnus
    2. COit means amount ordered of a specific item. the numbers exists in debug locals, so i can see they exist i just cannot get them out to the gridview. and i really dont know how
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      1. USThomas Andreè Lian
    3. CO"amount ordered" does sound like it should be an integer not a collection. BestiltAntall is a child collection of the "query" collection, how do you intend to display it in the grid? You would need some kind of sub grid in the GridViewRows of the Handlekurv1 grid
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      1. USMagnus
 

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