ForEach for ICollection<T>

I like inline function list.ForEach() for IList but always disappointed regarding to ICollection. In order to run loop requered to create Enumerator and etc. Therefore I offering short solutions:

public static void ForEach<T>(this IEnumerable<T> collection,Action<T> action)

{

    IEnumerator<T> enumerator = collection.GetEnumerator();

    while (enumerator.MoveNext())

    {

        action.Invoke(enumerator.Current);

    }

}

A using:

Dictionary<string, int> dic = new Dictionary<string, int>();

dic.Add("a", 123);

dic.Add("b",456);

//Example 1

dic.ForEach(item => Console.WriteLine(item.Key));

Action<string, int> print = (key, value) =>

{

    Console.WriteLine(

        string.Format("Key: {0}, value: {1}", key, value)

    );

};

//Example 2

dic.ForEach(item => print(item.Key, item.Value));

Enjoy.