Dictionary collections provide two additional properties: Keys and Values. Keys retrieves an
ICollection object with all the keys in the Hashtable, as Values retrieves an ICollection
object with all the values.
using System.Collections;
// Create and initialize a new Hashtable.
Hashtable hashTable = new Hashtable( );
hashTable.Add("1", "AndhraPradesh");
hashTable.Add("2", "TamilNadu");
hashTable.Add("3", "Karnataka");
hashTable.Add("4", "Punjab");
// get the keys from the hashTable
ICollection keys = hashTable.Keys;
// get the values
ICollection values = hashTable.Values;
// iterate over the keys ICollection
foreach(string key in keys)
{
Console.WriteLine("{0} ", key);
}
// iterate over the values collection
foreach (string val in values)
{
Console.WriteLine("{0} ", val);
}
OutPut:
1
2
3
4
AndhraPradesh
TamilNadu
Karnataka
Punjab
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