DNN (DotNetNuke) Class to build DDRMenu Nodes for use Outside of DDRMenu Templates

MyDDRMenu.cs

// lazy usage, put this file in /App_Code in your DNN instance

// the benefit of dropping this as a .cs file in /App_Code is that it 
// is now available THROUGHOUT DNN. You can use it in 2sxc VIews, RazorHost, 
// theme (skins/containers), etc - wherever

// the benefits of doing this over working with Tabs/TabController are many; you get permissions 
// applied and all the fields (properties) you need for doing navigation links (menus), you can 
// pass in settings (include or exclude nodes), etc.

//// this was mildly adapted from:
//// DNNHero Forum post, Running Razor Menu code within a module 
//// https://www.dnnhero.com/Forum/forumid/6/postid/4053/scope/posts

/*
// example usage in RazorHost or 2sxc View, this should output the page names of your top level menus items
@using DotNetNuke.Web.DDRMenu;

@{
  var myMenu = new MyDDRMenu();
  var myNodes = myMenu.GetMenu(null);
}

@foreach(var node in (IList<MenuNode>)myNodes.Children)
{
    <p>@node.Text</p>
}
*/

using System;
using DotNetNuke.Web.DDRMenu;

public class MyDDRMenu: DotNetNuke.Web.DDRMenu.ModuleBase 
{ 

  public DotNetNuke.Web.DDRMenu.MenuNode GetMenu(EventArgs e) 
  { 
    DotNetNuke.Web.DDRMenu.MenuNode rootNode = null; 
    using (new DotNetNuke.Web.DDRMenu.DNNCommon.DNNContext(this)) 
    { 
      try 
      { 
        base.OnPreRender(e); 

        //var menuStyle = GetStringSetting("MenuStyle"); 
        //if (String.IsNullOrEmpty(menuStyle)) 
        //{ 
        // rootNode = null; 
        // return rootNode; 
        //} 

        var menuSettings = new DotNetNuke.Web.DDRMenu.Settings 
        { 
          MenuStyle = "", //GetStringSetting("MenuStyle"), 
          NodeXmlPath = "", //GetStringSetting("NodeXmlPath"), 
          NodeSelector = "", //GetStringSetting("NodeSelector"), 
          IncludeContext = false, //GetBoolSetting("IncludeContext"), 
          IncludeHidden = false, //GetBoolSetting("IncludeHidden"), 
          IncludeNodes = "", //GetStringSetting("IncludeNodes"), 
          ExcludeNodes = "", //GetStringSetting("ExcludeNodes"), 
          NodeManipulator = "", //GetStringSetting("NodeManipulator"), 
          //TemplateArguments = 
          // DotNetNuke.Web.DDRMenu.Settings.TemplateArgumentsFromSettingString(GetStringSetting("TemplateArguments")), 
          //ClientOptions = 
          // DotNetNuke.Web.DDRMenu.Settings.ClientOptionsFromSettingString(GetStringSetting("ClientOptions")) 
        }; 

        rootNode = new DotNetNuke.Web.DDRMenu.MenuNode( 
          DotNetNuke.Web.DDRMenu.Localisation.Localiser.LocaliseDNNNodeCollection( 
            DotNetNuke.UI.Navigation.GetNavigationNodes( 
              ClientID, 
              DotNetNuke.UI.Navigation.ToolTipSource.None, 
              -1, 
              -1, 
              GetNavNodeOptions(menuSettings.IncludeHidden)
            )
          )
        ); 
      } 
        catch (Exception Ex) 
      { 

      } 
      return rootNode; 
    } 
  } 

  // copied from DDRMenu/DNNAbstract.cs because it's internal 
  public static int GetNavNodeOptions(bool includeHidden) 
  { 
    return (int)DotNetNuke.UI.Navigation.NavNodeOptions.IncludeSiblings + 
      (int)DotNetNuke.UI.Navigation.NavNodeOptions.IncludeSelf + 
      (includeHidden ? (int)DotNetNuke.UI.Navigation.NavNodeOptions.IncludeHiddenNodes : 0); 
  } 

}