C#/EnumerableFilter.cs

   1 using System;
   2 using System.Collections.Generic;
   3
   4 namespace IEnumerableExtras
   5 {
   6     /// <summary>
   7     /// Provides <see cref="IEnumerable{T}"/> Filter extension.
   8     /// </summary>
   9     public static class EnumerableFilter
  10     {
  11         /// <summary>
  12         /// Filter out those items in this collections that don't satisfy <paramref name="filterFunc"/>.
  13         /// </summary>
  14         /// <typeparam name="T">/typeparam>
  15         /// <param name="collection"></param>
  16         /// <param name="filterFunc"></param>
  17         /// <returns></returns>
  18         public static IEnumerable<T> Filter< T >( this IEnumerable<T> collection, Func<T, bool> filterFunc )
  19         {
  20             foreach ( T item in collection )
  21             {
  22                 if ( filterFunc( item ) )
  23                 {
  24                     yield return item;
  25                 }
  26             }
  27         }
  28     }
  29 }