KeyValuePair VS DictionaryEntry

 

KeyValuePair<T,T> is used in place of DictionaryEntry because it is generified. The advantage of using a KeyValuePair<T,T> is that we can give the compiler more information about what is in our dictionary. To expand on Chris' example
(in which we have two dictionaries containing <string, int> pairs).

Dictionary<string, int> MyDictionary = new Dictionary<string, int>(); foreach (KeyValuePair<string, int> item in MyDictionary) {   int i = item.Value; }  Hashtable MyHashtable = new Hashtable(); foreach (DictionaryEntry item in MyHashtable) {   // Cast required because compiler doesn't know it's a <string, int> pair.   int i = (int) item.Value; }