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POAdding Linq-to-Sql class breaks simple ASP.NET web application
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  1. POAdding Linq-to-Sql class breaks simple ASP.NET web application
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    copied!<p>Using VS2012, latest SP/update applied.</p> <p>I have been very frustrated trying to get an ObjectDataSource to work. See <a href="http://bit.ly/XTpdvN" rel="nofollow">http://bit.ly/XTpdvN</a> and <a href="http://bit.ly/XTpsHi" rel="nofollow">http://bit.ly/XTpsHi</a>.</p> <p>I started a new Web Application project, compiling and running after each step, trying to make the steps as granular as possible. </p> <p>1) Create new empty web application.<br> 2) Add WebForm1.aspx.<br> 3) Clean, rebuild, run (either View in Browser or in debugger).<br> 4) Add new class to App_Code.<br> 5) Repeat #3.<br> 5) Add existing .mdf to App_Data.<br> 6) Repeat #3.<br> 7) Add Linq-to-Sql class to App_Code (Items.dbml). Leave it empty.<br> 8) Clean, Rebuild, run in Debugger: </p> <blockquote> <p>Compiler Error Message: CS0234: The type or namespace name 'Linq' does not exist in the namespace 'System.Data' (are you missing an assembly reference?)<br> Source Error: </p> <p>Line 12: namespace ODS_Restart.App_Code Line 13: { Line 14: using System.Data.Linq; Line 15: using System.Data.Linq.Mapping; Line 16: using System.Data;</p> </blockquote> <p>As far as I can tell, there is nothing in the code in App_Code that needs Linq: </p> <pre><code>namespace ODS_Restart.App_Code { public class BAL { public static List&lt;string&gt; GetCountries() { return new List&lt;string&gt;() { "USA", "Aus", "NZ"}; } } } </code></pre> <p>As I said, very frustrating. Any insight on how to get past this problem would be greatly apprectiated....</p>
 

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