An obvious singleton implementation for .NET?

Question

I was thinking about the classic issue of lazy singleton initialization - the whole matter of the inefficiency of:

if (instance == null)
{
    instance = new         


        

Answer 1

I always use this regular (non-lazy) one (you could nest it like the other examples): (requires using System.Reflection;)

public class SingletonBase where T : class
{
    static SingletonBase()
    {
    }

    public static readonly T Instance = 
        typeof(T).InvokeMember(typeof(T).Name, 
                                BindingFlags.CreateInstance | 
                                BindingFlags.Instance |
                                BindingFlags.Public |
                                BindingFlags.NonPublic, 
                                null, null, null) as T;
}