how to display the items by sortid in razor - Feedback and Feature Requests

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Robbie van den Hoven 36 posts 181 karma points

Oct 22, 2012 @ 09:59

How to display the items by sortId in Razor?

Feedback and Feature Requests

I have a list of items displayed at 'creation' id likte this:

 dynamic brochureLijst = Model.brochures.Item;
     if (brochureLijst.Count() != 0)
        {
            <ul>
            @foreach (var brochure in brochureLijst)
            {
             <li> @brochure.naam</li>
            }
            </ul>
        }

But I would like to display them by there 'sortId'

I can't get this work. The 'soloutions' I found are based on nodes. How do I sort/order a list of items?

 <brochures>
        <Items>
          <Item id="1" sortId="2">
            <naam><![CDATA[Peter]]></naam>
          </Item>
          <Item id="2" sortId="3">
            <naam><![CDATA[Jack]]></naam>
          </Item>
          <Item id="3" sortId="1">
            <naam><![CDATA[John]]></naam>
          </Item>
        </Items>
      </brochures>

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aghy 129 posts 308 karma points

Oct 24, 2012 @ 12:50
0
Hi Robbie,

I think you should be able to do something like:
```
@foreach(var brochure in brochureLijst.OrderBy(item => item.sortId))
```
This is just a guess though so let me know how you get on.

Thanks
Ben
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Robbie van den Hoven 36 posts 181 karma points

Oct 24, 2012 @ 14:34

0

Hi Ben,

I also thought that it wil do the trick.

So I tried it again, but get the error in VS on the lambda saying "Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type".
Is it because of the use of 'dynamic'?

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aghy 129 posts 308 karma points

Oct 24, 2012 @ 15:24

Ok, not ideal but the problem is because dynamic isn't IEnumerable, try something like:

@{
  List<dynamic> items = new List<dynamic>();
    
  foreach (dynamic item in Model.multiType)
  {       
   
   items.Add(new {
     Id = item.id,
     sortId = item.sortId,
     Name = item.name
   });
  }

}

@foreach(var item in items.OrderBy(i => i.sortId)){
  <p>@item.sortId, @item.Name</p>
}

Basically you have to create a list of all your items which you can then use lambda expressions on.

Ben

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Jesper Ordrup 1019 posts 1528 karma points MVP

Oct 24, 2012 @ 15:33

0

Had the same problem. Solved it by abandoning razor. No time for that. Sadly - thats why xslt still will be around for a long time to come :-)

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