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    <p>I'm not sure if I have a full handle on what you're trying to do. What does "use it in this scenario" mean? Can you mimic your previous technique with something like this in order to encapsulate creating a NewsTagItem, or is it something else you're trying to achieve?</p> <pre><code>private Expression&lt;Func&lt;News_Attribute, NewsTagItem&gt;&gt; ConstructNewsTagItem() { return c =&gt; new NewsTagItem { NewsID = c.News_Id, Name = a.Name TagID = c.Tag_Id, Content = c.Content, Attribute = new TagItem { ID = c.Tag.Id, Name = c.Tag.Name } } }); db.News_Attributes.Select(ConstructNewsTagItem()); </code></pre> <p><strong>UPDATE:</strong> </p> <p>OK, we can't directly re-use your ConstructTagItem() because it returns an expression containing a function. What you need is a <code>MemberInitExpression</code>. It's a little tricky to create by hand, but we can use a trick whereby we create the expression we desire wrapped with a thunk, so that it isn't evaluated, and then grab the body of the thunk to get the expression. See the snippet below:</p> <pre><code>private Expression GenerateNewTagItem(TagItem c) { Expression&lt;Func&lt;TagItem&gt;&gt; expr = () =&gt; new TagItem { ID = c.ID, Name = c.Name }; return expr.Body; } </code></pre> <p>With this function, we can now do pretty much exactly what you want:</p> <pre><code>return (from c in db.News_Attributes select new NewsTagItem { NewsID = c.News_Id, TagID = c.Tag_Id, Content = c.Content, Attribute = GenerateNewTagItem(c) }); </code></pre> <p>Pretty neat right?</p>
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    1. POLinq to SQL construct a custom object externally - join from another object
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    1. USMarty Neal
    1. USMarty Neal
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    1. COI have tried to elaborate my answer, hope this helps
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    2. COOk, after much reading and re-reading your question, I think I understand what you're trying to get at. 1 Answer coming up...
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    3. COIt looks right! but I get one problem, it can't convert the expression to the property Attribute, which in this case it TagItem
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