Performs the specified action on each element of the IEnumerable : IEnumerable « Collections Data Structure « C# / C Sharp






  1. C# / C Sharp
  2. Collections Data Structure
  3. IEnumerable

Performs the specified action on each element of the IEnumerable

  

using System.Linq;
using System.Diagnostics;
namespace System.Collections.Generic
{
    public static class EnumeratorExtensions
    {
        /// <summary>
        /// Performs the specified action on each element of the IEnumerable&lt;T&gt;.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="source">The source list of items.</param>
        /// <param name="action">The System.Action&lt;T&gt; delegate to perform on each element of the IEnumerable&lt;T&gt;.</param>
        public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
        {
            if (source == null)
                throw new ArgumentNullException("source");
            if (action == null)
                throw new ArgumentNullException("action");

            using (IEnumerator<T> data = source.GetEnumerator())
                while (data.MoveNext())
                {
                    action(data.Current);
                }
        }

        /// <summary>
        /// Performs the specified action on each element of the IEnumerable&lt;T&gt;.
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="source">The source list of items.</param>
        /// <param name="action">The System.Action&lt;T&gt; delegate to perform on each element of the IEnumerable&lt;T&gt;.</param>
        public static void ForEach<T>(this IEnumerable<T> source, Action<T, int> action)
        {
            if (source == null)
                throw new ArgumentNullException("source");
            if (action == null)
                throw new ArgumentNullException("action");

            int index = 0;
            using (IEnumerator<T> data = source.GetEnumerator())
                while (data.MoveNext())
                {
                    action(data.Current, index);
                    index++;
                }
        }
    }
}








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