I have a razor that is building a dynamic navigation and I need it to only build the nested <ul> if two conditions are met. The script worked fine without the test for Children.Where("Visible"). When I was using Children.Any() it worked,but it would create an empty <ul> if there was a child node hidden from navigation. Here is my razor:

@{
var page = Model.AncestorOrSelf(3).Children.Where("Visible");

<ul>
@foreach (var subPage in page) {
    @*  var noLink = subPage.HasValue("noLinkNav") ? "class=noLink" : ""; if you want to style the external link to not display in the navigation for noLinkNav property *@
      var style = subPage.IsDescendantOrSelf(Model) ? "class=active" : "";
      var targetParent = subPage.externalUrl ? "target=_blank" : "";
      var linkParent = subPage.HasValue("externalUrl") ? subPage.url : subPage.Url;
    <li @style><a href="@linkParent" @targetParent>@subPage.Name</a>

@if(subPage.Children.Any() && subPage.IsAncestorOrSelf(Model)){ 
    <ul class="academics-items">
        @foreach (var item in subPage.Children.Where("Visible")) {
            var childActive = item.IsEqual(Model) ? "class=activeChild" : "";
            var target = item.externalUrl ? "target=_blank" : "";
            var link = item.HasValue("externalUrl") ? item.url : item.Url;
            <li @childActive ><a href="@link" @target>@item.Name</a>

@if(item.Children.Any() && item.IsAncestorOrSelf(Model)){ 
    <ul class="academics-items">
        @foreach (var child in item.Children.Where("Visible")) {
            var subChildActive = child.IsEqual(Model) ? "class=subActive" : "";
            var subTarget = child.externalUrl ? "target=_blank" : "";
            var subLink = child.HasValue("externalUrl") ? child.url : child.Url;
            <li @subChildActive ><a href="@subLink" @subTarget>@child.Name</a>

@if(child.Children.Any() && child.IsAncestorOrSelf(Model)){ 
    <ul class="academics-items">
        @foreach (var lastChild in child.Children.Where("Visible")) {
            var lastChildActive = lastChild.IsEqual(Model) ? "class=lastActive" : "";
            var lastChildTarget = lastChild.externalUrl ? "target=_blank" : "";
            var lastChildLink = lastChild.HasValue("externalUrl") ? lastChild.url : lastChild.Url;
            <li @lastChildActive ><a href="@lastChildLink" @lastChildTarget>@lastChild.Name</a></li>
        }
    </ul>
            }
            </li>
        }
                    </ul>
                }
                    </li>
        }
    </ul>
   } 
    </li>
}
</ul>

}