Razor recursive tree menu structure
asp.net, razor, recursion, umbraco
Solution
Solved it myself by moving around some code etc. Final solution:
@{
DynamicNode current = Model;
var nodes = Model.AncestorOrSelf(2).Children.Where("Visible");
if(nodes.Any())
{
<ul class="side-nav-list">
@foreach(var node in nodes)
{
@RenderSubMenuRecursive(node)
}
</ul>
}
}
@helper RenderSubMenuRecursive(DynamicNode node)
{
var childNodes = node.Children.Where(x => x.GetPropertyValue("umbracoNaviHide").Equals("0"));
string css = node.IsAncestor(Model) ? "open" : "";
if(node.Id == Model.Id)
{
css = "active";
}
<li class="@css">
<a href="@node.Url">@node.Name</a>
<ul>
@foreach (var childNode in childNodes.Where(childNode => Model.IsDescendantOrSelf(node)))
{
@RenderSubMenuRecursive(childNode)
}
</ul>
</li>
}
Problem
I think I need a little help here with rendering af recursive tree menu structure in Umbraco using the Razor viewengine. I need to render the following tree menu structure: ``` Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 ``` So when I am on `Page 5` I need to use CSS class `"open"` on the parent nodes: `Page 4`, `Page 2` and `Page 1` and the CSS class `"active"` on the node I am standing on. I have got the structure to render the correct nodes when clicking on a link in the menu, but I simply can't figure how to apply the correct classes :-( My code is as follows: ``` @{ DynamicNode current = Model; var nodes = Model.AncestorOrSelf(2).Children.Where("Visible"); if(nodes.Any()) { <ul class="side-nav-list"> @foreach(var node in nodes) { bool isDescendantOrSelf = current.IsDescendantOrSelf(node); <li> <a href="@node.Url">@node.Name</a> @if(isDescendantOrSelf) { @RenderSubMenuRecursive(node) } </li> } </ul> } } @helper RenderSubMenuRecursive(DynamicNode node) { if(node.Children.Any(x => x.GetPropertyValue("umbracoNaviHide").Equals("0") && Model.IsDescendantOrSelf(node))) { var childNodes = node.Children.Where(x => x.GetPropertyValue("umbracoNaviHide").Equals("0")); string css = node.IsAncestor(Model) ? "open" : ""; <ul> @foreach(var childNode in childNodes) { <li class="@css"> <a href="@childNode.Url">@childNode.Name</a> @if (childNode.IsDescendantOrSelf(node)) { @RenderSubMenuRecursive(childNode) } </li> } </ul> } } ``` Any help/hint on this is greatly appreciated! :-) Thanks in advance!