Copying the Hashtable elements to an Array Instance in C#

To copy the Hashtable elements to an Array Instance, the code is as follows−

Example

 Live Demo

using System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash = new Hashtable();       hash.Add("1", "AB");       hash.Add("2", "CD");       hash.Add("3", "EF");       hash.Add("4", "GH");       hash.Add("5", "IJ");       Console.WriteLine("Hashtable Key and Value pairs...");       foreach(DictionaryEntry entry in hash){          Console.WriteLine("{0} and {1} ", entry.Key, entry.Value);       }       Console.WriteLine("Copied to Array Instance...");       DictionaryEntry[] dictArr = new DictionaryEntry[hash.Count];       hash.CopyTo(dictArr, 0);       for (int i = 0; i < dictArr.Length; i++)          Console.WriteLine("Key = "+dictArr[i].Key + ", Value = " + dictArr[i].Value);    } }

Output

This will produce the following output −

Hashtable Key and Value pairs... 1 and AB 2 and CD 3 and EF 4 and GH 5 and IJ Copied to Array Instance... Key = 1, Value = AB Key = 2, Value = CD Key = 3, Value = EF Key = 4, Value = GH Key = 5, Value = IJ

Example

Let us now see another example −

 Live Demo 

using System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash = new Hashtable(5);       hash.Add("1", "AB");       hash.Add("2", "CD");       Console.WriteLine("Hashtable Key and Value pairs...");       foreach(DictionaryEntry entry in hash){          Console.WriteLine("{0} and {1} ", entry.Key, entry.Value);       }       Console.WriteLine("Copied to Array Instance...");       DictionaryEntry[] dictArr = new DictionaryEntry[5];       hash.CopyTo(dictArr, 2);       for (int i = 0; i < dictArr.Length; i++)          Console.WriteLine("Key = "+dictArr[i].Key + ", Value = " + dictArr[i].Value);    } }

Output

This will produce the following output −

Hashtable Key and Value pairs... 1 and AB 2 and CD Copied to Array Instance... Key = , Value = Key = , Value = Key = 1, Value = AB Key = 2, Value = CD Key = , Value =