How to iterate over a dictionary?

Question

I've seen a few different ways to iterate over a dictionary in C#. Is there a standard way?

Answer 1

foreach(KeyValuePair<string, string> entry in myDictionary) {     // do something with entry.Value or entry.Key } 

Answer 2

If you are trying to use a generic Dictionary in C# like you would use an associative array in another language:

foreach(var item in myDictionary) {   foo(item.Key);   bar(item.Value); } 

Or, if you only need to iterate over the collection of keys, use

foreach(var item in myDictionary.Keys) {   foo(item); } 

And lastly, if you're only interested in the values:

foreach(var item in myDictionary.Values) {   foo(item); } 

(Take note that the var keyword is an optional C# 3.0 and above feature, you could also use the exact type of your keys/values here)