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POIntersect two list<>
 

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    <p>I EDIT my post ,because let suppose that 3 method return rows from a Database tables tables are : docTags , tags and docs docTags is intermediate table one docs(document) can have many tags and one tags can belongs many docs how can i get : TagKey = "123" where docTags.Add(new Configuration(1, 1)); class Program {</p> <pre><code> static void Main(string[] args) { } } public class Configuration { public int DocID { get; set; } public int TagID { get; set; } public string Name { get; set; } public string DocKey { get; set; } public string TagKey { get; set; } public Configuration(int _docId,string _name, string _docKey) { DocID = _docId; Name = _name; DocKey = _docKey; } public Configuration(int _tagId,string name, string _dockey,string _tagKey) { TagID = _tagId; Name = name; TagKey = _tagKey; } public Configuration(int _tagId, int _docId) { TagID = _tagId; DocID = _docId; } public static List&lt;Configuration&gt; getDocType() { List&lt;Configuration&gt; docs = new List&lt;Configuration&gt;(); docs.Add(new Configuration(1,"contract", "xxx")); docs.Add(new Configuration(2,"Action", "yyy")); return docs; } public static List&lt;Configuration&gt; getTagName() { List&lt;Configuration&gt; tags = new List&lt;Configuration&gt;(); tags.Add(new Configuration( 1,"contractid", "123")); tags.Add(new Configuration(2,"SuperDuper", "332123")); tags.Add(new Configuration(22, "rama", "yyy")); tags.Add(new Configuration(32, "aktiv", "123456")); tags.Add(new Configuration(42, "data ","xx764fhx")); return tags; } public static List&lt;Configuration&gt; getDocTags() { List&lt;Configuration&gt; docTags = new List&lt;Configuration&gt;(); docTags.Add(new Configuration(1, 2)); docTags.Add(new Configuration(1, 1)); docTags.Add(new Configuration(1, 22)); docTags.Add(new Configuration(2, 2)); docTags.Add(new Configuration(2, 32)); return docTags; } } </code></pre> <p>}</p>
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    1. USKrasimir
    1. USKrasimir
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      1. VTDownMod
    1. COWhy "without extension methods"? LINQ is the obvious way to do this.
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      1. USJon Skeet
    2. COok but how to do this ?
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      1. USKrasimir
 

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