Planned
Last Updated: 26 Aug 2025 10:41 by ADMIN
Scheduled for 2025 Q4 (Nov)

### Bug report

When the TreeList is set up for Popup editing, the "required" validation triggers immediately when the Popup form is opened.

### Reproduction of the problem

1) Create a Popup editable TreeList.

2) Add the DataAnnotation [Required] attribute to any of the Model properties.

3) Click the built-in "Add new record" command.

4) The editor of the required field is automatically focused and the validation triggers immediately.

The behavior can be observed in the TreeList Popup Editing demo: https://demos.telerik.com/aspnet-core/treelist/editing-popup

### Expected/desired behavior

The validation must trigger on blur, as in the jQuery demo.

### Environment

* **Telerik UI for ASP.NET Core version: 2025.2.520
* **Browser: [all]

Completed
Last Updated: 25 Aug 2025 13:30 by ADMIN
Release 2025 Q4 (Nov)
Created by: Kheng Aik
Comments: 0
Category: UI for ASP.NET Core
Type: Bug Report
0

### Bug report

When building the scripts with NPM, there is syntax error "Unexpected number":


### Reproduction of the problem

Build the scripts (version 2025.3.812).

### Expected/desired behavior

The scripts must be built successfully.

### Workaround:

Remove the extra single quotes that wrap the version in the "rollup.mjs.config.mjs" and "rollup.modules.config.js" files:

  • rollup.mjs.config.mjs
import glob from 'glob';
import path from 'path';
import { nodeResolve } from '@rollup/plugin-node-resolve';
import polyfill from 'rollup-plugin-polyfill';
import alias from '@rollup/plugin-alias';

...

const version = '2025.3.812';
  • rollup.modules.config.mjs
import glob from "glob";
import path from "path";
import { nodeResolve } from "@rollup/plugin-node-resolve";
import polyfill from "rollup-plugin-polyfill";
import alias from "@rollup/plugin-alias";

...

const version = '2025.3.812';

### Environment

* **Kendo UI version: 2025.3.812

Declined
Last Updated: 11 Aug 2025 13:12 by ADMIN

### Bug report

When the Grid is set up for OData-v4 binding, the columns that bind to DateOnly fields fail to filter. The date value in the filter expression contains the time portion and the following error is thrown:

"The binary operator GreaterThan is not defined for the types 'System.Nullable`1[System.DateOnly]' and 'System.Nullable`1[System.DateTimeOffset]'."

### Reproduction of the problem

1) Create a Grid that uses OData-v4 binding.

2) Bind a specified column to a DateOnly field.

3) Filter the column through the default column filter menu and open the browser DevTools to review the response of the request.

//Model
public DateOnly LastProdUpdate { get; set; }

//View
@(Html.Kendo().Grid<ProductViewModel>()
    .Name("grid")
     .Columns(columns =>
        {
            columns.Bound(p => p.LastProdUpdate).Format("{0:dd/MM/yyyy}");
        })
        ...
        .Filterable()
        .DataSource(dataSource => dataSource
        .Custom()
        .Type("odata-v4")
        .Transport(t =>
        {
            t.Read(read => read.Url("/odata/Products").Data("function() {return {'$expand': 'Employee'} }"));
        })
        .PageSize(10)
        .ServerPaging(true)
        .ServerFiltering(true)
        .ServerSorting(true)
     )
)

### Expected/desired behavior

The DateOnly fields must be filtered successfully as the DateTime fields.

### Environment

* **Kendo UI version: 2024.4.1112
* **Browser: [all]

Completed
Last Updated: 11 Aug 2025 13:06 by ADMIN
Release 2025 Q3 (Aug)

Bug report

Filterable configuration in ForeignKey is not serialized in TagHelper Grid.

Reproduction of the problem

Open this REPL example

Current behavior

Filterable configuration in ForeignKey is not serialized in TagHelper Grid.

Expected/desired behavior

Filterable configuration in ForeignKey should be serialized in TagHelper Grid.

TicketID:

1692361

Environment

  • Kendo UI version: 2025.2.702
  • Browser: [all]
Declined
Last Updated: 25 Jul 2025 05:03 by ADMIN
Scheduled for 2025 Q2 (May)

### Bug report

When loading an editor through a partial View using EditorTemplateView(await Html.PartialAsync("PartialViewName")), the following error occurs:

The 'await' operator can only be used within an async lambda expression. Consider marking this lambda expression with the 'async' modifier.

### Reproduction of the problem

@(Html.Kendo().Form<UserViewModel>()
     .Name("myForm")
     .Items(items =>
     {
         items.Add().Field(f => f.Username).EditorTemplateView(await Html.PartialAsync("PartialViewName"));
      })
)

### Expected/desired behavior

The EditorTemplateView() must accept Html.PartialAsync("PartialViewName").

### Environment

* **Telerik UI for ASP.NET Core version: 2024.4.1112
* **Browser: [all]

Unplanned
Last Updated: 17 Jul 2025 09:01 by Luan

### Bug report

When setting autoWidth: true and expanding a node, the popup's width is not adjusted based on the displayed child nodes.

### Reproduction of the problem

1) Enable the autoWidth option and open the DropDownTree.

2) Expand an item. A horizontal scrollbar appears and the width of the popup is not adjusted as expected:

A Dojo sample for reproduction: https://dojo.telerik.com/faeuFFwb/2

### Expected/desired behavior

The width of the popup must be automatically adjusted when expanding an option and the "autoWidth" option is enabled.

### Environment

* **Kendo UI version: 2025.2.702
* **jQuery version: 3.7.1
* **Browser: [all]

Completed
Last Updated: 17 Jul 2025 07:16 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

When dragging and dropping a file into a specified FileManager folder, the Upload request triggers twice.

### Reproduction of the problem

1. Open the FileManager Demo: https://demos.telerik.com/kendo-ui/filemanager/index

2. Open the browser's Network tab.

3. Drag and drop a file into the FileManager.

4. Two Upload requests are triggered one after another.


### Expected/desired behavior

When uploading a single file with drag & drop, a single Upload request must trigger. When using the default upload button to upload a file, a single request triggers as expected.

### Environment

* **Kendo UI version: 2024.4.1112
* **jQuery version: 3.7.1
* **Browser: [all]

Completed
Last Updated: 16 Jul 2025 12:27 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

When defining custom editors in the OrgChart form by using EditorTemplateView() or EditorTemplateId() options, the editors are not initialized as expected.

### Reproduction of the problem

1) Define a DropDownList editor in a partial View and load it through the EditorTemplateView() option:

@(Html.Kendo().OrgChart<OrgChartEmployeeViewModel>()
                .Name("departmentsChart")
                .Editable(edit =>
                {
                    edit.Form(form => form
                      .Items(i =>
                      {
                         i.Add().Field(x => x.ParentDepartment).EditorTemplateView(Html.Partial("~/Views/Shared/EditorTemplates/ParentDepartmentDropDown.cshtml"));
                      }));
                })
                ...
)

// ~/Views/Shared/EditorTemplates/ParentDepartmentDropDown.cshtml
@model OrgChartEmployeeViewModel

@(Html.Kendo().DropDownListFor(m => m.ParentDepartment)
    .OptionLabel("-None-")
    .DataTextField("Text")
    .DataValueField("Value")
    .DataSource(source =>
    {
	    source.Read(read => read.Action("ReadDepartments", "Home"));
    })
)

2) The DropDownList is not initialized when opening the OrgChart form.

### Expected/desired behavior

The editors defined through the EditorTemplateView() or EditorTemplateId() options must be initialized correctly.

### Environment

* **Kendo UI version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]

Completed
Last Updated: 09 Jul 2025 08:52 by ADMIN
Release 2025 Q3 (Aug)

Bug report

TimeDurationPickerFor does not work in EditorTemplates scenarios.

Reproduction of the problem

  1. Create a TimeDurationPickerFor Helper within a standalone view within the ~/Views/EditorTemplate/ folder.
@model double

@(Html.Kendo().NumericTextBoxFor<double>(m => m))
  1. Use the Editor template within a more compound component. E.g the Grid
        .Columns(columns =>
        {
            columns.Bound(m => m.Duration).EditorTemplateName("TimeDurationPicker");
            columns.Command(command => command.Edit());
        })
  1. Notice that the application produces a server error.

Current behavior

The TimeDurationPickerFor Helper does not work in EditorTemplates scenarios.

Expected/desired behavior

The TimeDurationPickerFor Helper should work in EditorTemplates scenarios.

Environment

  • **Kendo UI version: 2025.2.702
  • **Browser: [all]
Completed
Last Updated: 07 Jul 2025 07:05 by ADMIN
Release 2025 Q3 (Aug)

Hi,

I'm following this document to load data into the grid view control using local data binding.

https://demos.telerik.com/aspnet-core/grid/local-data-binding 

I'm not sure this is an issue or expected grid view behavior when using local data binding. If loader-type and no-records are added. What happens is when there are no records, the Skeleton is still displayed and the no-records template is not displayed (see the attached image)


<kendo-grid mobile="Disabled" name="Grid" loader-type="GridLoaderType.Skeleton">
 <columns>
 <column field="ProductName" title="Product Name">
 </column>
 <column field="UnitPrice" format="{0:C}" title="Unit Price" width="130">
 </column>
 <column field="UnitsInStock" title="Units In Stock" width="130">
 </column>
 <column field="Discontinued" title="Discontinued" width="130">
 </column>
 </columns>
 <datasource type="DataSourceTagHelperType.Ajax" page-size="20" server-operation="false" data="@Model">
 </datasource>
 <filterable enabled="true">
 </filterable>
 <scrollable enabled="true" />
 <pageable enabled="true">
 </pageable>
 <sortable enabled="true" />
<no-records template="string HTML template, automatically centered" />
</kendo-grid>

 

Thanks

Bob

Completed
Last Updated: 03 Jul 2025 15:26 by ADMIN
Release 2025 Q3 (Aug)

As stated in the title, the Save() action of a grid (with pagination, not endless scroll) does set the scroll position to the top instead of persisting it. 

I tried to follow instructions from https://www.telerik.com/aspnet-core-ui/documentation/html-helpers/data-management/grid/scrolling/overview#restoring-the-scroll-position but without success. The scroll position is moved to the top after the DataBound event handler.

Unplanned
Last Updated: 01 Jul 2025 09:08 by Neal

### Bug report

When using the default column checkbox filter menu and the data requested from the server takes time to load, the filter menu popup does not resize correctly when opening the menu for the first time.

The issue started to occur in version 2025.1.211.

### Reproduction of the problem

1) Enable the checkbox filter menu of a specified column. The Grid binds to remote data and the data operations are perfomed on the server.

2) Open the filter menu when the Grid is loaded.

3) The Read request triggers and a loader is displayed to indicate that the data is loading:

4) The options are loaded, but the popup container does not expand as expected:

5) Close the filter menu and opend it again:

### Expected/desired behavior

The filter menu popup must display all options when the data is loaded.

### Workaround

<style>
     .k-animation-container-shown {
        overflow: visible !important;
    }
</style>


### Environment

* **Kendo UI version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]

Unplanned
Last Updated: 30 Jun 2025 07:01 by Aleksandar

Bug report

The rowReorder event does not return the correct newIndex when dragging a row from a lower row index to a higher row index.

Reproduction of the problem

  1. Run this dojo https://dojo.telerik.com/omyPpaZb
  2. Drag Chai and drop after Chang. Note oldIndex is 0, newIndex is 2, which is unexpected as indices are 0-based

Image

  1. Re-run the dojo to start fresh and drag Chang and drop before Chai and the indices are correct - oldIndex: 1, newIndex: 0

Image

Current behavior

The returned newIndex is incorrect.

Expected/desired behavior

The returned newIndex should be correct.

Environment

  • Kendo UI version: 2025.2.520
  • Browser: [all]
Completed
Last Updated: 27 Jun 2025 13:01 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

When adding a <select> element as a custom tool in the Editor, the dropdown does not open.

### Reproduction of the problem

1) Run the Dojo sample and try to open the dropdown in the toolbar:

https://dojo.telerik.com/VVPUopDw

The same example work as expected with version 2023.1.117.

2) When using version 2024.4.1112, if you remove the "ref-toolbar-tool" attribute from the <div class='k-toolbar-item'> element, the dropdown opens as expected.

### Expected/desired behavior

The <select> element must function correctly when added as a custom tool in the toolbar.

### Workaround

Handle the "click" event of the select and prevent the event bubbling:

<script>
    $(function () {
        const selectElements = $('select[id^="symbolSelect_"]');
        $(selectElements).each(function (index) {
            this.addEventListener("click", clickHandlerSymbolSelect);
        });
    });

    function clickHandlerSymbolSelect(e) {
        e.stopPropagation(); //Prevent event bubbling, so Kendo cannot swallow or cancel the event.
        const sendingElement = e.target;
        sendingElement.showPicker();
        return true;
    }
</script>

### Environment

* **Kendo UI version: 2025.1.227
* **jQuery version: 3.7.1
* **Browser: [all]

Completed
Last Updated: 25 Jun 2025 04:57 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

When integrating components into the ToolBar by using the TemplateId() or TemplateView() options, the ToClientTemplate() option throws a client-side error "SyntaxError: Failed to execute 'appendChild' on 'Node': Unexpected token '<'".

When the component is added to the template without the ToClientTemplate() option, the component is rendered as expected in the ToolBar.

### Reproduction of the problem

A REPL sample for reproduction: https://netcorerepl.telerik.com/cTYqlaPG12psetl157

Remove the ToClientTemplate() option to observe how the DropDownList is rendered as expected.

### Expected/desired behavior

When using an external Kendo UI Template, any nested components must be defined with the ToClientTemplate() option.

### Environment

* **Telerik UI for ASP.NET Core version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]

Unplanned
Last Updated: 24 Jun 2025 15:21 by ADMIN
Created by: Aleksandar
Comments: 0
Category: FileManager
Type: Bug Report
0

Description

FileManager calls Create and Destroy instead of Update on move.

That is not what happens in the file system. Move is Update operation where the location of the item is updated. No files are copied or deleted.

Copying files and directories unnecessarily wastes the resources on the server and the cloud where computing and storage operations are charged.

If Destroy fails which might happen because Create and Destroy are executed separately then files are copied and not moved.

Expected behavior

Move calls Update.

Completed
Last Updated: 24 Jun 2025 13:16 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

When using the sort" and "filter" toolbar commands, the "sort" and "filter" events do not trigger.

### Reproduction of the problem

 A Dojo sample for reporduction: https://dojo.telerik.com/ySEQTSSS

### Expected/desired behavior

The "sort" and "filter" events must trigger when sorting and filterng the columsn through the respective toolbar commands.


### Environment

* **Kendo UI version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]

Completed
Last Updated: 24 Jun 2025 13:14 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

The "Clear Sorting" and "Clear all filters" labels cannot be localized when using the "sort" and "filter" toolbar commands.

### Reproduction of the problem

A Dojo sample for reporduction: https://dojo.telerik.com/JHJGUaSH

### Expected/desired behavior

The "Clear Sorting" and "Clear all filters" messages should be exposed for localization.

### Environment

* **Kendo UI version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]

Completed
Last Updated: 20 Jun 2025 13:30 by ADMIN
Release 2025 Q3 (Aug)

### Bug report

When opening the filter menu of a specified column through the classic ColumnMenu, the filter container is displayed with scrollbars when the dropdown of the filter operator is opened.

### Reproduction of the problem

1) Define a Grid and enable its classic ColumnMenu.

2) Open the filter menu of a specified column and then open the dropdown to select a filter operator.

3) The filter container has scrollbars. The "k-menu-popup" element has "overflow: auto";

Use the following demo to test the case and select the "classic" type for the ColumnMenu: https://demos.telerik.com/kendo-ui/grid/column-menu

The issue does not appear when using version 2024.4.1112.

### Expected/desired behavior

The filter menu container must not change its appearance when the dropdown opens.

### Workaround:

<style>
.k-menu-popup {
    overflow: visible !important;
}
</style>
### Environment

* **Kendo UI version: 2025.1.211
* **jQuery version:  3.7.1
* **Browser: [all]

Unplanned
Last Updated: 13 Jun 2025 11:39 by Paul

### Bug report

When adding custom classes or styles to the TimeDurationPicker component, they are applied to the hidden input elenent rather than to the parent element.

### Reproduction of the problem

1. Create a TimeDurationPicker and add a class to its element:

<input id="timedurationpicker" class="testClass" />

2. When you inspect the component's markup, the "testClass" is added to the hidden input element.

A Dojo sample for reproduction: https://dojo.telerik.com/IsTnGqsk

### Expected/desired behavior

Any custom attributes must be added to the parent element with class "k-timedurationpicker".

### Environment

* **Kendo UI version: 2025.2.520
* **jQuery version: 3.7.1
* **Browser: [all]

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