hi

how to refresh grid and TreeView Parent Page ?

The parent page includes grid and TreeView and I want the child page that is in the new tab
Update grid and TreeView.

Also, on the child page or the new tab, by clicked on the button, a kendo window will open in iframe mode, which I want to change the grid and TreeView after clickined the save button ، be updated on the main page.

Thanks

I have

@(Html.Kendo().TreeView()
    .Name("treeviewAvail")

...and...

 @(Html.Kendo().ListBox()
      .Name("listboxAvail")

How can I 'have both of those so that I can drag/drop from either into another list box?  (It's not needed to go the other way.)

@(Html.Kendo().ListBox()
    .Name("listboxSelected")

I've seen this topic, but it does not handle what I need for TreeView too

https://www.telerik.com/forums/listbox-drag-and-drop-1557506

Hello!  I have been troubleshooting an issue with the way that the treeview places elements.  It appears to only be happening with items that contain children (and thus have an expand arrow). 

I am unsure what could be causing this, but the library seems to be putting a span with the k-icon and k-i-expand classes (which will show the expand arrow) and then nesting the rest of the treeview row inside of that span.  When I look at the demos of the same version on your site, the spans are not nested.  Also I noticed that the css class names are different, but that might be on purpose (or perhaps I am confused about something).

<!--  HTML OF TREEVIEW ROW WITH CHILDREN  -->
<li role="treeitem" class="k-item" data-uid="900b9f8a-e745-4d2f-9177-36f8f029d19a" aria-selected="false">
    <div class="k-mid">
        <span class="k-icon k-i-expand">
            <span class="k-checkbox-wrapper" role="presentation">...</span>
            <span class="k-in">...</span>
        </span>
    </div>
</li>

<!--  VERSUS HTML OF TREEVIEW ROW WITHOUT CHILDREN  -->
<li role="treeitem" class="k-item" data-uid="dfd4e997-b440-42dc-8780-061f00ed16d6" aria-selected="false">
    <div class="k-mid">
        <span class="k-checkbox-wrapper" role="presentation">...</span>
        <span class="k-in">...</span>
    </div>
</li>

Honestly, I am pretty stumped on this one.. as far as what could be causing this.  I looked through the css classes in inspector and nothing stood out to me...  I *AM* using a template though, but I don't see how it could be the issue.  Here is the treeview definition as well as the template I am using:

<!-- GRID DEFINITION  -->
<div class="d-flex flex-row">
            @(Html.Kendo().TreeView()
                          .Name("TreeView")
                          .DataTextField("Name")
                          .Checkboxes(true)
                          .DragAndDrop(true)
                          .Events(events => events
                              .Select("treeview_OnSelect")
                              .Check("treeview_OnCheck")
                              .Drag("treeview_OnDrag")
                              .Drop("treeview_OnDrop"))
                          .TemplateId("treeview-template")
                          .DataSource(dataSource =>
                              dataSource.Read(read =>
                                  read.Action(Model.ReadAction, Model.Controller)))
            )
</div>

<!--  TEMPLATE  -->
<script id="treeview-template" type="text/kendo-ui-template">
    # var id = item.id; #
    # if (id.includes("group")) { #
    <i class="far fa-fw fa-folder"></i>
    # } else if (id.includes("category")) { #
    <i class="far fa-fw fa-sitemap"></i>
    # } else { #
    <i class="@Model.IconClass fa-fw"></i>
    # } #
    &nbsp;
    #: item.Name #
</script>

                           <kendo-treeview name="treeView">
                                <items>
                                    <treeview-item text=Test expanded="true">
                                        <items>           
                                            <treeview-item text="Google" href="http://www.google.com" />   
                                        </items>
                                    </treeview-item>
                                </items>
                            </kendo-treeview>

Need help with presenting, creating, editing and deleting Hierarchal data using Tree view and (0r) Tree List Telerik controls for my ASP.Net Core MVC application using remote data options.

I am using Microsoft Visual Studio Community 2019 Version 16.10.3.

Example: ASP.NET Core TreeView Component Data Binding | Telerik UI for ASP.NET Core

The data is not populating by using Tree view control by using the above method using remote data option.

The below link does not have complete information about  TreeList_Read method and also data not populating for this control. 

ASP.NET MVC TreeList Component Ajax Binding | Telerik UI for ASP.NET MVC

I need help here.

I have an asp.net core razor that contains a TreeView control, populated from a List<TreeViewItemModel> .

<form id="EditEmployees">

 <div>

                  Html.Kendo().TreeView()
                        .Name("ActiveEmployees")
                        .TemplateId("treeview")
                        .BindTo((IEnumerable<TreeViewItemModel>)ViewBag.employeeList)
                        .Checkboxes(c => c.CheckChildren(true))
                        .DragAndDrop(false)
                    )

</div>

</form>

My issue:
When I submit the form back to the POST Action in the Controller I would like pass the checked items.
For some reason i can't see the items

     Hi,

I have a treeview and a grid side by side on a page with bootstrap 4 layout. When the user selects a node in the treeview, the grid datasource refreshes. This works ok.

Now I'd like to size the grid and the treeview dynamically to the size of the browser window minus the header of the page, so that the treeview and the grid display a scrollbar (if needed) independently. The tree is load on demand and can contain a lot of elements.

Im struggling with setting the treeview and the grid height in the window resize handler.

Currently the grid is not paging, it maybe a requirement to have the grid paging then I would have to set the pagesize dynamically to display as much rows as possible within the available space..

Thanks for your help

Erwin

Hi everybody 

I have a problem with kendo treeview checkboxes 
i populated treeview with remote data, it binds correctly. I used "checked" property to send checked checkboxes to view, it works fine too. 
i use 2 different method for sending checked node IDs to controller but does not work properly.
method1: 
use java script to read nodes recursively and gather IDs then store in hidden field and send to controller but most of the times some nodes doesn't illustrate the check items thoroughly. in other words, I lose near half of checkboxes randomly.

method2:
using checkbox name and template and send checkboxes directly to the controller got same issue. 

what can i do for this issue??
thanks