Intersect in Linq using Comparer

with help from Lost In LoC

  172         private static readonly char[] SplitDelimiters = " ".ToCharArray();
 ...

  215         private IQueryable<Talent> BasicSearch(string searchExpression)

  216         {

  217             IQueryable<Talent> t;

  218             string[] sa = searchExpression.Trim().Trim()
                                  .ToLower()
                                  .Split(SplitDelimiters,
                                         StringSplitOptions.RemoveEmptyEntries);

  219             t = _repository.GetTalents();

  220             foreach (string s in sa)

  221             {

  222                 t = t.Intersect(AddBasicSearch(s), new TalentComparer()); 

  223                 //http://lostinloc.com/2008/02/06/the-principle-of-least-astonishment/

  224             }

  225             return t;

  226         }

   13     public class TalentComparer : IEqualityComparer<Talent> // defines Equals and GetHashCode

   14     {

   15         public bool Equals(Model.Model.Talent x, Model.Model.Talent y)

   16         {

   17             return x.Id == y.Id;

   18         }

   19 

   20         // implements the IEqualityComparer.GetHashCode(T obj) : int

   21         public int GetHashCode(Model.Model.Talent obj)

   22         {

   23             return obj.Id.GetHashCode();

   24         }

   25     }