I have a contentstructure like following example:

Product(ID 1079)

     Product category1

             Product category level2

                     Product category level3

                            Product

                     Product category level3

                            Product

                            Product

              Product category level2

                      Product

Would following code work to loop through the node-hierarchy and collect the nodes of type Product?

[System.Web.Services.WebMethod]
        public static string[] GetNames(string prefixText)
        {
            List<String> namn = new List<String>();
            Node node = new umbraco.presentation.nodeFactory.Node(1079);
            foreach (Node child in node.Children)
            {
                if (child.NodeTypeAlias == "Product")
                {
                    namn.Add(child.Name);
                }
               
                foreach (Node child2 in child.Children)
                {
                    if (child.NodeTypeAlias == "Product")
                    {
                        namn.Add(child2.Name);
                    }
                   
                    foreach (Node child3 in child.Children)
                    {
                        if (child.NodeTypeAlias == "Product")
                        {
                            namn.Add(child3.Name);
                        }
                       
                        foreach (Node child4 in child.Children)
                        {
                            if (child.NodeTypeAlias == "Product")
                            {
                                namn.Add(child4.Name);
                            }

                        }
                    }
                }
               
            }
            return namn.ToArray();
        }