Yes, we can store multiple types of data in C# using the collection. System.Collections namespace provides this feature to store multiple types of data in C#. This namespace has some classes to provide this feature.

1. ArrayList
2. Stack
3. Queue
4. Hashtable

using System;

using System.Collections;

public class Program

{

 public static void Main()

 {

  ArrayList list=new ArrayList();

  list.Add(45);

  list.Add('Ram');

  list.Add('M');

  list.Add(15.23);

  list.Add(Convert.ToByte(12));

  foreach(var item in list)

  Console.WriteLine('Item : '+item+' Type : '+item.GetType().Name);

 }

}

Output

Item : 45 Type : Int32

Item : Ram Type : String

Item : M Type : Char

Item : 15.23 Type : Double

Item : 12 Type : Byte