triple level navigation in razor

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Carlos 338 posts 472 karma points

Feb 02, 2012 @ 00:05

0

Triple Level Navigation in Razor

I am a bit new to Razor. I found a code snoppen that lets me get 2 levels of navigation. How would I spit out a third level?

This is what I have. I have a feeling it is either my third 'if' statement or my third 'foreach' or both.

Any help is appreciated.

@using umbraco.MacroEngines
@inherits umbraco.MacroEngines.DynamicNodeContext
@{
var homeNode = @Model.NodeById(1089);
<ul id="mainNav">
  <li><a href="/">Home</a> </li>
  @foreach (dynamic page in @Model.AncestorOrSelf(1).Children.Where("Visible"))
  {
  string style = "";
  if (Model.Id == page.Id) { style = "class=\"selected\""; }
  <li>
  <a href="@page.Url" @Html.Raw(style)>@page.Name</a>

  @if (page.Childen != null && page.Children.Count() > 0)
  {
  <ul class="subNavFirst">
  @foreach (dynamic secondPage in page.Children.Where("Visible"))
{
  <li>
<a href="@secondPage.Url">@secondPage.Name</a>

  @if (page.Childen != null && page.Children.Count() > 0)
  {
  <ul class="subNavSecond">
  @foreach (dynamic thirdPage in page.Children.Where("Visible"))
{
  <li>
<a href="@thirdPage.Url">@thirdPage.Name</a>
  </li>
  }
  </ul>
  }

  </li>
  }
<li class="subNavBottom">
  <img src="/media/1944/MenuBgShadowBottom.png" alt=""/>
</li>
  </ul>
  }
  </li>
  }
</ul>

}

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Owen 123 posts 246 karma points

Feb 02, 2012 @ 02:42

There is a bug in your code:

 @if (page.Childen != null && page.Children.Count() > 0)
            {
                <ul class="subNavFirst">
                @foreach (dynamic secondPage in page.Children.Where("Visible"))
                 {
                    <li>
                         <a href="@secondPage.Url">@secondPage.Name</a>
                  
                              @if (page.Childen != null && page.Children.Count() > 0)
                                {
                                    <ul class="subNavSecond">
                                    @foreach (dynamic thirdPage in page.Children.Where("Visible"))
                                     {
                                        <li>
                                             <a href="@thirdPage.Url">@thirdPage.Name</a>
                                        </li>
                                    }
                                    </ul>
                                }
                 
                    </li>
                }

The code marked as bold shoud be secondPage, not page.

And furthermore you can move the same code into a helper code block, something like below:

@helper render_nav(dynamic page, string subNavClass, bool rendSubNav){

<li>

<a href="@page.Url">@page.Name</a>

if(rendSubNav && page.Children != null && page.Children.Count()>0){

<ul class="@subNavClass">

foreach(dynamic subPage in page.Children){

@render_nav(subPage, "newClass", rendSubNav);

</ul>

<li>

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Rodion Novoselov 694 posts 859 karma points

Feb 02, 2012 @ 15:47

Hi. The version of mine :-)

@inherits umbraco.MacroEngines.DynamicNodeContext

@helper nav(dynamic node, int level) {
  if(level > 0) {
    if(node.Children.Any()) {
      <ul>
        @foreach(var child in node.Children.Where("Visible")) {
          <li>
            <a href="@child.Url">@child.Name</a>
            @nav(child, level - 1)
          </li>
        }
      </ul>
    }
  }
}

@nav(Model, Convert.ToInt32(Parameter.Levels))

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