Hi, I am following the source code written by Dave Woestenborghs on creating custom sections. The source code can be found here: https://bitbucket.org/dawoe/duugcustomsections/src

When I add few customers, they appear below each other with no grouping root node. How to be able to do so?

Here is some code snippets:

[Tree("duug-customers", "duug-customers-tree", "Customers")]
[PluginController("DUUG")]
public class CustomerTreeController : TreeController
{
    private const string CustomerPrefix = "customer-";

    protected override TreeNodeCollection GetTreeNodes(string id, FormDataCollection queryStrings)
    {
        // if not root, return all nodes
        if (id != Constants.System.Root.ToInvariantString()) throw new NotSupportedException();

        var nodes = new TreeNodeCollection();
        var ctrl = new CustomersController();
        var customerRoute = string.Format("{0}{1}/edit/", queryStrings.GetValue<string>("application"),
            this.TreeAlias.EnsureStartsWith('/'));

        nodes.AddRange(ctrl.GetAll().Select(customer => CreateTreeNode(string.Format("{0}{1}", CustomerPrefix, customer.Id.ToString(CultureInfo.InvariantCulture)), Constants.System.Root.ToInvariantString(), queryStrings, customer.Name, "icon-client", false, string.Format("{0}{1}", customerRoute, customer.Id))));

        return nodes;
    }
}

Any idea?

Thanks