Error when i try to select a new item in Multiselect

4 posts, 0 answers
  1. Martin
    Martin avatar
    7 posts
    Member since:
    May 2016

    Posted 26 Sep 2016 Link to this post


    I try to do that in mvc :

    I want to add item in a multiselect control and after i want to select it.

    It work find to add in datasource of my multiselect but i can't select my new item by code (this.value(add);) .

    i don't think it the new item the problem because i can't select a existing item. I tried to select a existing element in this event and a had the same error.

    I add in attach files a print screen of my error ("Failed to execute 'removeChild' on 'Node' : Parameter 1 is not of type 'Node'....)

    This is my code :

    @(Html.Kendo().MultiSelectFor(model => model.LesDestinataires)
                   .Events(e =>
                   .DataSource(source =>
                       source.Read(read =>
                           read.Action("ObtenirCourriels", "Assignation");
                   .HtmlAttributes(new { style = "width:350px;" })


    after my event : (the problem it at this line : this.value(add);)

    function onFiltering(e)
           var filter = e.filter;
           if (filter.value.indexOf(";") > 0) {           
               var newtag = filter.value.replace(";","");
               var values = this.value().slice();
               var ajout = {NomComplet: newtag ,AdresseCourriel: newtag };
               var add = [newtag];
               if (values.length> 0) {    
                   var merge = $.merge(add, values);
               } else {
              //this.dataSource.refresh(); //This don't work


    My read.action to fill multiselect :

    public JsonResult ObtenirCourriels()
        List<Mentore> maSource = db.Mentores.ToList();
        var lstMentores = maSource.Take(1).Select(s => new { NomComplet = s.NomComplet_Mentore, AdresseCourriel = s.Courriel_Mentore }); //Take(1) to just fill with one item my multiselect
        return Json(lstMentores, JsonRequestBehavior.AllowGet);



    Thank for your help!


  2. Martin
    Martin avatar
    7 posts
    Member since:
    May 2016

    Posted 27 Sep 2016 Link to this post

    Ok... my code was good...

    The problem was i had a old telerik Library (2015.3.1111) and i update it to 2016.3.914.

    Now i can add and select the new item. But the filter Windows don't close (see my attach files).

    It will close if i had that line : this.dataSource.refresh();  but i will have this error : this.dataSource.refresh is not a function.

    if i want to close it i have to do a .close function but i don't want to close the dropdown list but just the filter list.

    Thank to help me.

  3. Martin
    Martin avatar
    7 posts
    Member since:
    May 2016

    Posted 27 Sep 2016 Link to this post

    this.dataSource.refresh(); only work partially.... it will do what i want but throw a javascript error. If i put in in a try/catch it stop to work.

    when i don't have this line...if i leave the multiselect and go back in...i have a error (typeError: cannot read property 'value' of undefined) it like i lost my new rows.

    in this exemple .refresh() work :

    i tried in other project with no sql data and i have the same error.




  4. Veselin Tsvetanov
    Veselin Tsvetanov avatar
    560 posts

    Posted 28 Sep 2016 Link to this post

    Hi Martin,

    I have answered to your question in the support ticket that you have opened. I suggest you to continue the further discussion on this matter there and close this forum thread.

    Veselin Tsvetanov
    Telerik by Progress
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