How to enumerate through Dictionary

How can I retreive elemenents in Dictionary开发者_开发知识库 through index (int index )..;Instead of a key

foreach(KeyValuePair<String,String> pair in dictionary)
{
     string key = pair.Key;
     string value = pair.Value;
}

or to get access by item

dictionary.ToList()[index].Key/Value    :-)

Dictionary is an unordered collection so it does not provide random access. Only types that implement IList<T> provide random access to their contents.

Well, that's not totally correct - you could use a OrderedDictionary (which would give you random access without IList<T>) but you lose the benefits of the generic dictionary. If you need random access, most likely you shouldn't be using a Dictionary.

check out following

Accessing a Dictionary.Keys Key through a numeric index

There is no method for retrieving elements by index because the Dictionary class does not specify the order in which key/value pairs are stored. If you need both key and index lookup use the OrderedDictionary class.

I found this useful:

foreach (var key in dictionary.Keys)
{
    var value = dictionary[key];
}

or

foreach (var value in dictionary.Values)
{
    // use value
}