Recursive List Flattening

Question

I could probably write this myself, but the specific way I\'m trying to accomplish it is throwing me off. I\'m trying to write a generic extension method similar to the oth

Answer 1

Function:

public static class MyExtentions
{
    public static IEnumerable RecursiveSelector(this IEnumerable nodes, Func> selector)
    {
        if(nodes.Any())
            return nodes.Concat(nodes.SelectMany(selector).RecursiveSelector(selector));

        return nodes;
    } 
}

Usage:

var ar = new[]
{
    new Node
    {
        Name = "1",
        Chilren = new[]
        {
            new Node
            {
                Name = "11",
                Children = new[]
                {
                    new Node
                    {
                        Name = "111",

                    }
                }
            }
        }
    }
};

var flattened = ar.RecursiveSelector(x => x.Children).ToList();