title: LINQ indexOf a particular entry
body: <p>I have an MVC3 C#.Net web app.  I have the below string array.</p>
  
  <pre><code>    public static string[] HeaderNamesWbs = new[]
                                         {
                                            WBS_NUMBER,
                                            BOE_TITLE,
                                            SOW_DESCRIPTION,
                                            HARRIS_WIN_THEME,
                                            COST_BOGEY
                                         };
  </code></pre>
  
  <p>I want to find the Index of a given entry when in another loop.  I thought the list would have an IndexOf.  I can't find it.  Any ideas?</p>