public new static DerivedSingleton Instance()
{
if (uniqueInstance == null)
{
uniqueInstance = new DerivedSingleton();
}
return(uniqueInstance as DerivedSingleton);
}
static void Main()
{
DerivedSingleton instance1 = DerivedSingleton.Instance();
DerivedSingleton instance2 = DerivedSingleton.Instance();
Console.WriteLine(ReferenceEquals(instance1, instance2));
// Delay.
Console.ReadKey();
}