Loop through System.Collections.Generic.Dictionary via for statement

Question

I have a quick question. Is there way to easy loop through System.Collections.Generic.Dictionary via for statement in C#?

Thanks in advance.

Answer 1

You can use foreach:

Dictionary<string,string> dictionary = new Dictionary<string,string>();

// ...

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

Answer 2

Not in a reasonable way, no. You could use the Linq extension ElementAt:

for (int i = 0; i < dictionary.Keys.Count; i++)
{
    Console.WriteLine(dictionary.ElementAt(i).Value);                
}

...but I really don't see the point. Just use the regular foreach approach. If you for some reason need to keep track of an index while iterating, you can do that "on the side":

int index = 0;
foreach (var item in dictionary)
{
    Console.WriteLine(string.Format("[{0}] - {1}", index, item.Value));

    // increment the index
    index++;
}