Copy key values from NameValueCollection to Generic Dictionary

IDictionary<string, string> dict = new Dictionary<string, string>();

NameValueCollection collection = new NameValueCollection();

collection.Add("1", "Ram");

collection.Add("2", "Shyam");

collection.Add("3", "Ghanshyam");

collection.Add("4", "Laxman");

//Lambda Expression

dict = collection.AllKeys.ToDictionary(k => k, k => collection[k]);

//OR

//Loop

foreach (var k in collection.AllKeys)

{

    dict.Add(k, collection[k]);

}