C#/EnumerableAll.cs

   1 using System;
   2 using System.Collections.Generic;
   3
   4 namespace IEnumerableExtras
   5 {
   6     /// <summary>
   7     /// Provides <see cref="IEnumerable{T}"/> Some/All extension.
   8     /// </summary>
   9     public static class EnumerableAll
  10     {
  11         /// <summary>
  12         /// Check if all of this collection items satisfy <paramref name="testFunc"/>.
  13         /// </summary>
  14         /// <typeparam name="T"></typeparam>
  15         /// <param name="collection"></param>
  16         /// <param name="testFunc"></param>
  17         /// <returns></returns>
  18         public static bool All< T >( this IEnumerable<T> collection, Func<T, bool> testFunc )
  19         {
  20             foreach ( T enumerable in collection )
  21             {
  22                 if ( !testFunc( enumerable ) )
  23                 {
  24                     return false;
  25                 }
  26             }
  27
  28             return true;
  29         }
  30     }
  31 }