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how to use Hashtable in c# .net

Posted by  Ankit Singh
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I want to use Hashtable  in c# .net please help me.

  1. Re: how to use Hashtable in c# .net

    The Hashtable class represents a collection of key-and-value pairs that are organized based on the hash code of the key. It uses the key to access the elements in the collection.

    A hash table is used when you need to access elements by using key, and you can identify a useful key value. Each item in the hash table has a key/value pair. The key is used to access the items in the collection.

    using System;
    using System.Collections;

    namespace CollectionsApplication
        class Program
            static void Main(string[] args)
                Hashtable ht = new Hashtable();

                ht.Add("001", "Aditya Kumar");
                ht.Add("002", "Manoj Singh");
                ht.Add("003", "Sohel safe");
                ht.Add("004", "V.k Patel");
                ht.Add("005", "Atul Varma");
                ht.Add("006", "M. Arif");
                ht.Add("007", "Ritesh Saikia");

                if (ht.ContainsValue("Visal Pateker"))
                    Console.WriteLine("This employee name is already in the list");
                    ht.Add("008", "Visal Pateker");

                // Get a collection of the keys.
                ICollection key = ht.Keys;

                foreach (string k in key)
                    Console.WriteLine(k + ": " + ht[k]);



      Modified On Apr-10-2018 06:02:30 AM