creating a list of parents and their children using @helper traverse

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Steve 472 posts 1216 karma points

Sep 25, 2013 @ 20:19

I am new to razor and am trying to create a navigational list consisting of parent nodes and their children, but I am having no luck getting it to work with nested foreach loops, so I am trying to use @helper traverse(dynamic node).

Here is what I have, but it doesn't work:

@{ 
    var page = Model.DescendantsOrSelf("AcademicsCategory").Where("Visible");
    var subs = page.Children.Where("Visible");      
}   

@helper traverse(dynamic node){         

    <ul style="border:1px solid red">
    @foreach(var item in page) {
        <li>@item.Name
            <ul>
            @traverse(subs)
            <li>@child.Name</li>
                    </ul>
                </li> 
              }
 </ul>
}

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Ali Sheikh Taheri 470 posts 1648 karma points c-trib

Sep 25, 2013 @ 20:34

Hi Steve

This should work if you have 2 levels.

@foreach (var subPage in page)
{
    <ul>
        <li>
            @subPage.Name
            <ul>
                @foreach (var item in subPage.Children)
                {
                    <li>@item.Name</li>
                }
            </ul>
        </li>
    </ul>
}

Cheers Ali

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Jeavon Leopold 3074 posts 13631 karma points MVP 11x admin c-trib

Sep 25, 2013 @ 21:09
0
I think you have problem in that page is a collection not a single node. Maybe try the below and then Ali's suggestion
```
var page = Model.DescendantsOrSelf("AcademicsCategory").Where("Visible").First().Children;
```
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Steve 472 posts 1216 karma points

Sep 25, 2013 @ 21:10

0

Thanks Ali! I wish I understood how to do it with a (@helper) as well.

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Jeavon Leopold 3074 posts 13631 karma points MVP 11x admin c-trib

Sep 25, 2013 @ 21:15

0

Hi Steve,

You can do it with a traverse helper, it's a bit more complicated and written for Mvc but take a look at this

Jeavon

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Steve 472 posts 1216 karma points

Sep 25, 2013 @ 21:17

0

Thanks, you are right. A little too much for me. Thanks anyway.

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