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POLINQ not accepting Contains()
 

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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/374267/contains-workaround-using-linq-to-entities">&#39;Contains()&#39; workaround using Linq to Entities?</a> </p> </blockquote> <p>Using LINQ in C#, I have the following problem;</p> <p>I need to select rows from a big table, using 3 conditions: - "schooljaar" needs to be a value, set before, - "p_bamatype" needs to be a value NOT in a list defined in settings (this is a StringCollection) - "p_stdgeb" needs to be a value NOT in a list defined in settings (this is also a StringCollection)</p> <p>I have this code:</p> <pre><code>var set = (db.SA_Opleiding.Where(opleiding =&gt; opleiding.schooljaar == schooljaar &amp;&amp; !Properties.Settings.Default.Admin_Studiegebieden_Exclude.Cast &lt;string&gt;().ToList().Contains( opleiding.p_stdgeb.ToString()) &amp;&amp; !Properties.Settings.Default.Admin_Studietypes_Exclude.Cast &lt;string&gt;().ToList().Contains( opleiding.p_bamatype.ToString())) .Select(opleiding =&gt; new OpleidingModel() { Id = opleiding.p_opleiding, LanNames = new Dictionary &lt;string, string&gt;() { { "NL", opleiding. opleidingNL }, { "FR", opleiding. opleidingFR }, { "EN", opleiding. opleidingEN } } })) .ToList&lt;OpleidingModel&gt;(); return set; </code></pre> <p>However, LINQ fails converting the Contains method. I read about others having the same issue, but I can't seem to find a decent solution for this. Is there really any solution for the problem described? So what I exactly need is a NOT IN (collection of strings) LINQ equivalent.</p>
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    1. CO[Here's](http://stackoverflow.com/questions/88473/how-to-do-a-where-in-values-in-linq-to-entities-3-5) one of the many possible duplicates.
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