Hello,

I am generating a dynamic nav on my page using a traverse helper, but I need to find a way to prevent it from creating an empty <ul> tag for the navigation when there are no children of the current page to display. Here is what I have.

@{
var StartLevel = String.IsNullOrEmpty(Parameter.startLevel) ? 3 : int.Parse(Parameter.startLevel);
var FinishLevel = String.IsNullOrEmpty(Parameter.finishLevel) ? 7 : int.Parse(Parameter.finishLevel);
var page = @Model.AncestorOrSelf(StartLevel);
    if(page != null)
    {
    @traverse(page, StartLevel, FinishLevel);   
    }                
}   

@helper traverse(dynamic page, int StartLevel, int FinishLevel)
{
    <ul class="nodeList">
        @foreach (var node in page.Children.Where("Visible && NodeTypeAlias == \"Category2InternalPage\" || NodeTypeAlias == \"ExternalLink\" || NodeTypeAlias == \"StudentGroupsPage\""))
            {
            var itemName = node.HasValue("shortPageTitle") ? @node.shortPageTitle : node.HasValue("pageTitle") ? @node.pageTitle : @node.pageName;
            var levelOne = node.IsAncestor(Model) ? "class=levelOne" : "";
            var childActive = node.IsEqual(Model) ? "class=activeChild" : "";
            var target = node.externalUrl ? "target=_blank" : "";
            var link = node.HasValue("externalUrl") ? node.url : node.Url;
            <li @childActive @levelOne ><a href="@link" @target>@itemName</a>
    @if(node.Children.Where("Visible && NodeTypeAlias == \"Category2InternalPage\" || NodeTypeAlias == \"ExternalLink\" || NodeTypeAlias == \"StudentGroupsPage\"").Count() > 0 && node.IsAncestorOrSelf(Model) && node.Level <= FinishLevel)
          { 
          @traverse(node, StartLevel, FinishLevel);
          }
            </li>
          }
    </ul>     
}