This is a followup to http://our.umbraco.org/forum/developers/api-questions/16034-Razor-@helper-in-Umbraco.

If you want to use DynamicNode in a Razor template, do NOT @using umbraco.MacroEngines as that will cause a name collision with Razor which will then look for global::RazorEngine.Templating in... umbraco.MacroEngines.RazorEngine.Templating (missing the global::).

Instead, @using ume = umbraco.MacroEngines and then refer to ume.DynamicNode.

Also, the following SiteMap look works quite well, yet noone has suggested it.

@helper traverse(dynamic node, int pad) {
    <div style="padding-left: @(pad)px;">
     @node.Name
     @foreach (var n in node.Children) {
            @traverse(n, pad + 8)
      }
 </div>
}
@traverse(Model, 0)

Is there a reason? Performances? Something else?