Singleton class in C#

Singleton in C#

The Singleton pattern ensures that a class only has one instance and provides a global point of access to it from a well-known access point. The class implemented using this pattern is responsible for keeping track of its sole instance rather than relying on global variables to single instances of objects.


Examples :

using System;

public class Singleton
{
   private static Singleton instance;

   private Singleton() {}

   public static Singleton Instance
   {
      get 
      {
         if (instance == null)
         {
            instance = new Singleton();
         }
         return instance;
      }
   }
}