I have two questions for this one:

1. If i want to take into account the umbracoNaviHide property it would make sense to use .Where("umbracoNaviHide"), but since i need it to be false, how do i then negate that one? Tried various ways, but the result is alwys "can't cast bool to..."
2. In my menu (the new theme for 4.7) the current menu gets highlighted. This works like a treat with the code i have, but only on the first same level. If i move into an image album, the highlight disappears as the current page id isn't the same as the id's i run through in my foreach. I tried using the.Ancestors to travers to level 2 (my menu starting point), but to no avail.

<ul id="topNavigation">
@{
  var level = 2;
  var currentPage = Model;
  while (@currentPage.Level > @level-1){ currentPage = @currentPage.Parent; }

  foreach(var page in @currentPage.Children.Where("umbracoNaviHide"))
  {
    if(@page.Level == @level)
    {
      if(@page.Id == @currentPage.Id)
      {
        <li class="current">
          <a class="navigation" href="@page.Url">@page.Name</a>
        </li>
      }
      else
      {
        <li>
          <a class="navigation" href="@page.Url">@page.Name</a>
        </li>
      }
    }
  }
}
</ul>

Hope you can point me in the right direction.

Regards

Allan

You could try something like this (not tested in any way and not very elegant either):

bool hide = false;

foreach(var page in @currentPage.Children) {
    hide = false;
    try {hide=page.umbracoNaviHide } catch { }
    if (! hide) {
     // do whatever
    } else { }

}

I am using this for the umbracoNaviHide

  @foreach (var c in currentPage.Children)
  {
    if(c.umbracoNaviHide.ToString() == "1") {continue;}
   <li><a href="@c.Url">@c.Name</a></li>
  }

according to http://umbraco.com/follow-us/blog-archive/2011/3/1/umbraco-razor-feature-walkthrough-%E2%80%93-part-4 you can just do .Where("umbracoNaviHide != true") as per 4.7

Ah, finally the wiki is writeable and I could correct my mistake, plus make it look better. Missing properties are handled gracefully now, so this will not throw an error if one of the children is of a doctype without the umbracoNaviHide property.

@{
  <ul class="topnavigation">
  @foreach (var c in Model.AncestorOrSelf(1).Children.Where("umbracoNaviHide!=true")
  {
   <li><a href="@c.Url">@c.Name</a></li>
   }
  </ul>
  }

Would be nice to add an HasAccess() also in the where - but that was not possible atm, could be added within the loop tho if (c.HasAccess())...

I just upgraded to RC and it works fine. The solution i ended up with is this:

@* --- Module --- *@
<ul id="topNavigation">
@{
  var level = 2;
  var currentMenu = @Model.AncestorOrSelf(@level);

  foreach(var page in @Model.AncestorOrSelf(@level-1).Children.Where("umbracoNaviHide==false"))
  {
    if(@page.Id == @currentMenu.Id)
    {
      <li class="current">
        <a class="navigation" href="@page.Url">@page.Name</a>
      </li>
    }
    else
    {
      <li>
        <a class="navigation" href="@page.Url">@page.Name</a>
      </li>
    }
  }
}
</ul>

I think it's pretty good, but if anyone has a better way let me know.

Very good! You could add this expression to shorten it:

<li @(page.Id == currentMenu.Id?"class=current":"")> 
 <a class="navigation" href="@page.Url">@page.Name</a>
</li>

I've runtime NULL error on this:

<ul id="topNavigation">
@{


  if (@Model.Level>=2) {
                      
      var level = 3;
  var currentMenu = @Model.AncestorOrSelf(@level);                  
  foreach(var page in @Model.AncestorOrSelf(@level-1).Children.Where("umbracoNaviHide==false"))
  {
    if(@page.Id == @currentMenu.Id)
    {
      <li class="current">
        <a class="navigation" href="@page.Url">@page.Name</a>
      </li>
    }
    else
    {
      <li>
        <a class="navigation" href="@page.Url">@page.Name</a>
      </li>
    }
  }
  }
}
</ul>

I wish to list first children of current node.

Thanks

You have too many @ signs, if you're in a code block (@{ .. }) you don't need to use @ unless you want to write something to the page:

<ul id="topNavigation">
@{
  if (Model.Level>=2) {

      var level = 3;
  var currentMenu = Model.AncestorOrSelf(level);                  
  foreach(var page in Model.AncestorOrSelf(level-1).Children.Where("umbracoNaviHide==false"))
  {
    if(page.Id == currentMenu.Id)
    {
      <li class="current">
        <a class="navigation" href="@page.Url">@page.Name</a>
      </li>
    }
    else
    {
      <li>
        <a class="navigation" href="@page.Url">@page.Name</a>
      </li>
    }
  }
  }
}
</ul>

same error...

My SiteMap is:

Umbraco Node Content ( level 0 )

     IT - level 1

           Node A ( level 2 )

               Node A1 ( level 3 )

          Node B ( level 2 )

I've a fix menu with link of level 2 node. Then when I click on one of them, must be appear the list of links to child of level 3 for that node of level 2

What is the exact error message that you're getting? Have you copied and pasted the code I provided exactly? It works perfectly for me.

Try and remove the .Where("umbracoNaviHide==false") and see if it works then.

If that does not work you're going to have to find out what exactly is null, so experiment with leaving bits of code out and see if the error still occurs.

Yes. I paste it as you wrote. I delete Where, but I've the same error Impossibile eseguire un'associazione di runtime su un riferimento Null

So, what happens when you start commenting out code, at which line does it break? You could also set a breakpoint at the beginning and step through the code to see when it breaks.

??? But I don't use Visual Studio, now. If I wish to use, how connect for debugging ?

Have a look at this blog post: http://blog.percipientstudios.com/2011/3/3/how-to-umbraco-razor-intellisense-and-debugging.aspx

You could also just start commenting out code until the error disappears.

    var rootNodes = currentPage.AncestorsOrSelf.Last().Children;

    <nav role="navigation" class="nav-collapse">

        <ul class="nav">

            @foreach(var rootNode in @rootNodes) {

                bool hasChildren = rootNode.Children.Where("umbracoNaviHide != @0", "True").Any();

                @Html.Raw(rootNode.Children.Where("umbracoNaviHide != @0", "true").Count().ToString())

            <[email protected](hasChildren ? "class=\"dropdown\"" : "")>

                @* Add CSS class selected if rootIsSelected *@

                <a href="@rootNode.Url" class="@(currentPage.Id == rootNode.Id ? "selected" : "")">@rootNode.Name</a>

                @* Display children on  rootNode *@

                @childPages(rootNode.Children, maxLevel)

            </li>

            }

        </ul>

    </nav>

@Html.Raw(rootNode.Children.Where("umbracoNaviHide != @0", "true").Count().ToString())

I have the code above.. why does the count always return 0... it doesn't seem like the where clause with umbracoNaviHide works at all...

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