You can enumerate through a Dictionary in one of 3 ways:

Using KeyValue pairs

Dictionary<int, string> dict = new Dictionary<int, string>();
foreach(KeyValuePair<int, string> kvp in dict) 
{
   Console.WriteLine("Key : " + kvp.Key.ToString() + ", Value : " + kvp.Value);
}

Using Keys

Dictionary<int, string> dict = new Dictionary<int, string>();
foreach(int key in dict.Keys)
{
    Console.WriteLine("Key : " + key.ToString() + ", Value : " + dict[key]);
}

Using Values

Dictionary<int, string> dict = new Dictionary<int, string>();
foreach(string s in dict.Values)
{
    Console.WriteLine("Value : " + s);
}