Create hierarchical structure from Dropbox delta api

Node.cs

//Author casperOne

public class Node
{
    private readonly IDictionary<string, Node> _nodes = new Dictionary<string, Node>();

    public string Name { get; set; }
    public string Path { get; set; }
    public IDictionary<string, Node> Nodes
    {
        get
        {
            return _nodes;
        }
    }

    public void Add(string path)
    {
        // Parse into a sequence of parts.
        string[] parts = path.Split(new[] { "/" }, StringSplitOptions.RemoveEmptyEntries);

        // The current node.  Start with this.
        Node current = this;

        // Iterate through the parts.
        foreach (string part in parts)
        {
            // The child node.
            Node child;

            // Does the part exist in the current node?  If
            // not, then add.
            if (!current._nodes.TryGetValue(part, out child))
            {
                // Add the child.
                child = new Node
                            {
                                Name = part,
                                Path = path
                            };

                // Add to the dictionary.
                current._nodes[part] = child;
            }

            // Set the current to the child.
            current = child;
        }
    }
}