C# Lazy Loaded Automatic Properties

Question

In C#,

Is there a way to turn an automatic property into a lazy loaded automatic property with a specified default value?

Essentially, I am trying to turn th

Answer 1

I did it like this:

public static class LazyCachableGetter
{
    private static ConditionalWeakTable> Instances = new ConditionalWeakTable>();
    public static R LazyValue(this T obj, Func factory, [CallerMemberName] string prop = "")
    {
        R result = default(R);
        if (!ReferenceEquals(obj, null))
        {
            if (!Instances.TryGetValue(obj, out var cache))
            {
                cache = new ConcurrentDictionary();
                Instances.Add(obj, cache);

            }


            if (!cache.TryGetValue(prop, out var cached))
            {
                cache[prop] = (result = factory());
            }
            else
            {
                result = (R)cached;
            }

        }
        return result;
    }
}

and later you can use it like

       public virtual bool SomeProperty => this.LazyValue(() =>
    {
        return true; 
    });