foreach (var e in map)

public static class Extensions
{
    public static void ForEach<TKey, TValue>(this IDictionary<TKey, TValue> dictionary, Action<TKey, TValue> action)
    {
        foreach (var pair in dictionary)
            action(pair.Key, pair.Value);
    }
}
 
class Program
{
    static void Main(string[] args)
    {
        var dictionary = new Dictionary<string, string>();
        dictionary["key1"] = "value1";
        dictionary["key2"] = "value2";
        dictionary.ForEach((k, v) => Console.WriteLine("{0} : {1}", k, v));
    }
}