To enumerate through all the keys/values of a Hashtable in C# .Net

  

Since each element of the hashtable is of IDictionary key/value pair type. Hashtable can be enumerated through DictionaryEntry structure in System.Collections namespace in c#. DictionaryEntry class defines a dictionary key/value pair that can be set or retrieved.

The following sample would help in hashtable elements enumeration.

//create a new hashtable
System.Collections.Hashtable hsh = new System.Collections.Hashtable();

//add some elements in the hashtable
hsh.Add("1", "london dreams review");
hsh.Add("2", "karisma");
hsh.Add("3", "the band movie");
hsh.Add("4", "end of days");

//enumerate or looping through all the elements in the hashtable
foreach (System.Collections.DictionaryEntry entry in hsh)
{
  Console.WriteLine("Key: " + entry.Key.ToString() + " | " + "Value: " + entry.Value.ToString());
}