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  • pikej 27 posts 47 karma points
    Jun 28, 2011 @ 22:01
    pikej
    0

    next and previous buttons

    hi guys,

    I am trying to do simple navigatin consisting of two links: next / previous and I am following razor code

     @foreach (var item in @Model.DescendantsOrSelf())

        {

      var linkN = @Model.Next().Url;

      var linkP = @Model.Previous().Url;

      <a href="@linkN">Next</a>

     <a href="@linkP">Previous</a> }

    it works fine but when there are no siblings and null is returned there is an error. how to avoid this?

    regards,

    pikej 

  • Sebastiaan Janssen 5044 posts 15475 karma points MVP admin hq
    Jun 29, 2011 @ 09:04
    Sebastiaan Janssen
    1

    You can do something like:

        @{
            if (@Model.Next() != null) {
                <a href="@Model.Next().Url">Next</a>
            }
            if (@Model.Previous() != null) {
                <a href="@Model.Previous().Url">Previous</a>
            }
        }
  • pikej 27 posts 47 karma points
    Jul 05, 2011 @ 10:06
    pikej
    0

    thanks a lot Sebastiaan, your code works very well!

  • Niklas Hjelm 104 posts 125 karma points
    Aug 08, 2011 @ 14:43
    Niklas Hjelm
    0

    Hi!

    This is a really good example. I have a question.

    I have a structure like this:

    • Photos
      Category1
      Image1 
      Image2

      Category2
      Image1
      Image2
    Is there a way to navigate images from the root even if they are in parent folders? With your example I can only get the sibling. 
    Thanks / Niklas
  • Sebastiaan Janssen 5044 posts 15475 karma points MVP admin hq
    Aug 08, 2011 @ 14:46
  • Niklas Hjelm 104 posts 125 karma points
    Aug 08, 2011 @ 14:55
    Niklas Hjelm
    0

    Thanks I'll do that. BTW is there a way to get a specific document type using where? Like the example below but for document type.

    @foreach(var item in Model.Children.Where("bodyText.Contains(\"cat\")"))
    {
        @item.Name
    }

     

  • Sebastiaan Janssen 5044 posts 15475 karma points MVP admin hq
    Aug 08, 2011 @ 15:15
    Sebastiaan Janssen
    0

    Sure, just use: 

    Model.Children.Where("NodeTypeAlias == \"cat\"");
  • Steve 472 posts 1216 karma points
    Dec 18, 2015 @ 17:09
    Steve
    0

    I am trying to add previous and next buttons including only a specific nodeTypeAlias, but this isn't working. I get an error.

    <umbraco:Macro runat="server" language="cshtml">
    <div class="prevNextWrap">
         @{
        if (@Model.Next() != null) {
            <a class="prevNext" href="@Model.Next().Url">Next</a>
        }
        if (@Model.Previous() != null) && @Model.Where("NodeTypeAlias == \"TwoColumnAdmissionsLeftNav\"") {
            <a class="prevNext" href="@Model.Previous().Url">Previous</a>
        }
    }
    </div>
    

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