Hey guys,

I really need help. I don't know much about SS and I'm in struggle with the menu.

Before I try to explain my issue, I just Copy & Paste my code.

<div class="dropdown 
<% control Menu(1) %>
	<% if LinkOrSection = section && Children %>
		<% if LinkingMode = current %>
			open
		<% else %>
			<% control Children %>
				<% if LinkOrSection = section && LinkingMode = current && Children %>
					open
				<% end_if %>
			<% end_control %>
		<% end_if %>
	<% end_if %>
<% end_control %>" id="leftnavigationDropdown">

All I want is to check if the current page have subpages. This would be ok if I don't use this again. But I do. So I repeat myself..

So here's my question: Can I define a variable in the backend to do this? Like "<% if HaveChildren %>open<% end_if %>"?

Like "<% if HaveChildren %>open<% end_if %>"?

A simple <% if $Children %>open<% end_if %> should do that.

// add class open if current page has children
<div class="dropdown <% if $Children %>open<% end_if %>" id="leftnavigationDropdown">

Please note, 'control' is deprecated. Use 'loop' or 'with' instead.

Hey, thank you for your answer. That's good but not perfect. Seems like I didn't explained my situation good enough.

So I got a Dropdown with 4 links in it. If I click on one of these links, I want to add in the dropdown class "open".
If I add "<% if $Children %>open<% end_if %>", the menu will always have "open" because the menu have 4 links. I just want to add "open" if the links have sublinks.

No, the menu will have a "open" class if the current page has children.
If you click on another item in the menu which has no children, the Dropdown will not have a "open" class.

If I click on one of these links, I want to add in the dropdown class "open".

Ok, I see.

So I guess in JavaScript, this would look something like this?

if( $('#leftnavigationDropdown .current, #leftnavigationDropdown .section').size() ) {
	$('#leftnavigationDropdown').addClass('open');
}

Can I define a variable in the backend to do this? Like "<% if HaveChildren %>open<% end_if %>"?

Answering the original question. It's basically something like this:

class Page extends SiteTree {
	public function HaveChildren() {
		$output = false;
		// add logic to alter $output to true
		return $output;
	}
}

<div class="dropdown <% if HaveChildren %>open<% end_if %>" id="leftnavigationDropdown">

I think thats it what I'm searching for. I'll try it. Thank you! (:

How do I get the vars with the sitetree?