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  • Kasper Dyrvig 246 posts 379 karma points
    Jun 08, 2012 @ 14:42
    Kasper Dyrvig
    0

    Select distinkt nodeId's from multi-node tree picker

    How do I select only unique nodeId's from a multi-node picker?

    So far, I got this:

    string hotelNodeString "";
    foreach(var season in Model.Children.Where("Visible"))
    {
     hotelNodeString hotelNodeString season.seasonHotels;
     if(!season.IsLast())
     {
      hotelNodeString hotelNodeString ",";
     }
    }
    string[accommodations hotelNodeString.Split(',');

    And then...

    @foreach(var accommodationItem in accommodations)
    {
     var accommodationNode Library.NodeById(accommodationItem.AsInt());
     var accommodationSelected accommodationNode.Id == qId "class=selected" "";
     <href="?tab=@q&a=@accommodationNode.Id" @accommodationSelected>
      @accommodationNode.hotelTitle
     </a>
    }

    It is Umbraco 4.7.2.

  • Funka! 398 posts 660 karma points
    Jun 09, 2012 @ 03:09
    Funka!
    0

    Instead of building up a comma-separated string, and then splitting that up into an array, instead perhaps consider building up a List<string> which you can check for dupes before actually adding. Here's a rough idea (untested) on what I mean by this:

    List<string> hotelNodes = new List<string>();
    foreach(var season in Model.Children.Where("Visible"))
    {
      if (!hotelNodes.Contains(season.seasonHotels))
      {
        hotelNodes.Add(season.seasonHotels);
      }
    }
    string[] accommodations = hotelNodes.ToArray<string>();
    

    This is assuming the type of season.seasonHotels is actually a string, instead of a DynamicXml or something, but if so, just add the appropriate casting where needed. Despite this, however, there are two things I'm curious about:

    First, my experience with the uComponents Multi-Node Tree Picker has been that it doesn't allow me to select duplicates, even when I try.

    Second, I'm thinking you could combine your two separate code blocks/loops into a single comprehensive loop? That is, don't bother with building up an array of nodes and then later iterate through them --- just loop once the first time and do your magic right there?

    Best of luck to you!

  • Kasper Dyrvig 246 posts 379 karma points
    Jun 11, 2012 @ 11:18
    Kasper Dyrvig
    0

    Hi again

    I have played around with the List<>. I wasn't able to make your suggestion work just like that. I have chaged the multi-node tree picker to save the data as XML to see if that helped enything. Right now I'm testing this:

    List<stringhotelIds new List<string>();
    foreach (var in Model.Children)
    {
     if(s.seasonHotels != null)
     {
      foreach (var in s.seasonHotels.InnerText.ToString())
      {
       hotelIds.Add(h.ToString());
      }
     }
    }
    <ul>
     @foreach(var hid in hotelIds)
     {
      <li>@hid</li>
     }
    </ul>

    It gives me this:

    1
    1
    2
    2
    1
    1
    2
    2
    1
    1
    6
    2

    Not exatly what I want... Any ideas?

  • Kasper Dyrvig 246 posts 379 karma points
    Jun 11, 2012 @ 11:56
    Kasper Dyrvig
    0

    If I do it like this, it works. I have combined my original code with some of Funka's suggestion.

    string hotelNodeString = "";
    foreach(var season in Model.Children.Where("Visible"))
    {
     hotelNodeString = hotelNodeString + season.seasonHotels;
     if(!season.IsLast())
     {
      hotelNodeString = hotelNodeString + ",";
     }
    }
    string[] accommodations = hotelNodeString.Split(',');

    List<string> hotels = new List<string>();
    foreach(string st in accommodations)
    {
     if (!hotels.Contains(st))
     {
      hotels.Add(st);
     }
    }
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