Hello, I recently created a new tree called powerpoint which loads all Documents of my custom document type PowerPoint. I can create the tree and it loads just fine under the root node but when I go to expand a powerpoint file and show all of its children (another custom document type) of type slide the tree re-renders all of the powerpoint documents under it and i get none of the slide documents. For some reason, even when the powerpoint is expanded the id passed in it still -1, or the root id, thus creating everything under the root all over again. Here is the code:

        protected override void CreateRootNode(ref XmlTreeNode rootNode)

        {
            rootNode.NodeType = TreeAlias;
            //rootNode.NodeID = "init";

            rootNode.Text = "PowerPoint Files";

            rootNode.Menu = new List<IAction> { ActionRefresh.Instance,CRTumbraco.Actions.ActionCreatePpt.Instance };

        }

        public override void Render(ref XmlTree tree)

        {
            var root = new Node(Convert.ToInt32(this.id));


            foreach (Node umbracoNode in root.ChildrenAsList)

            {
                if (umbracoNode.NodeTypeAlias == "PowerPoint" || umbracoNode.NodeTypeAlias == "slide")

                {
                    var node = XmlTreeNode.Create(this);

                    node.NodeID = umbracoNode.Id.ToString();
                    node.Text = umbracoNode.Name.ToString();
                    //pptNode.Action = "javascript:openEditPage("+ presentationNode.Id.ToString() +");";

                    node.Action = "javascript:openContent(" + umbracoNode.Id + ");";

                    node.Menu = new List<IAction>();


                    if (umbracoNode.NodeTypeAlias == "PowerPoint")

                    {
                        node.NodeType = "PowerPoint";

                        node.Icon = "../../../App_Plugins/UmbracoMVCBackofficePages/Icons/pptFileIcon.png";

                    }
                    else

                    {
                        node.NodeType = "slide";

                        node.Icon = "../../../App_Plugins/UmbracoMVCBackofficePages/Icons/slideIcon.png";

                    }

                    node.HasChildren = umbracoNode.Children.Count > 0;
                    node.Source = node.HasChildren ? GetTreeServiceUrl(node.NodeID) : "";

                    OnBeforeNodeRender(ref tree, ref node, EventArgs.Empty);

                    if (node != null)

                    {
                        tree.Add(node);
                    }
                }
            }
        }