Hi Team,

I would like to request a way to incorporate adding a reference to the model for group cells in the Kendo UI Scheduler.  Perhaps using a uid for the cell may help. 

Thank you!

We allow the user to rename files and folders, but if they rename to the same name as another file/folder, what we would like to do is prompt the user with a confirmation dialog, explaining that if they click "Ok", the existing file will be overwritten with the newly-renamed file.  For folders, it would merge the contents, but again, duplicates would be overwritten.  If they click "Cancel", then the dialog should close, and nothing else should happen.  

Right now, the closest thing I could find was the "requestStart" event handler.  This fires after the user renames, and before the request is sent to the server.  The problem is, even in the documentation, it says, "This event can be prevented only for read requests."  

We would like to be able to prevent "update" requests as well, for this scenario.  Can this be added as a feature? 

Bug report

Regression with 2025.1.211

Reproduction of the problem

More info in Dojo: https://dojo.telerik.com/YLgJCnaL

Environment
jQuery: 3.4.1
Kendo UI version: 2025.1.211
Browser: [all]

Hi Guys,

Just upgrade to the 2025.1.211 release and during testing I have spotted a fundamental issue which should have been picked up during QA.

Run the following dojo

    https://dojo.telerik.com/dBSXoLYq

Open up the filter menu on the date column and hit the icon and you will find the date pop-up is constrained within the filter menu and cannot be navigated.
See attached screenshot - DateFilter.png

Note: This also effects filtering Date Time columns as well

Is there a workaround for this or do we have to wait another couple of months for the next release because as things stand we cannot pushed this to production.

Regards
Alan.

Hi Team,

I would like to request a way to set the color/type of a series so if it makes a condition, the color/type would change.  For example, if the series count reaches a certain amount, change the color of the line, and the type to dash.  Perhaps setting the Series.Line.Color as a function would be great.

Thank you!

Bug report

Form validation is very slow in 2025.Q1

Reproduction of the problem

Dojo: https://dojo.telerik.com/wKZQZqMu

1. Please choose a Kendo UI 2025.1.211 library and click run

2. Click the show form button on the grid's toolbar. Popup a new window with kendo form.

3. Please click validate button and please look at the console.

Then

1. Please choose a Kendo UI 2024.4.1112 library and click run

2. Click the show form button on the grid's toolbar. Popup a new window with kendo form.

3. Please click validate button and please look at the console.

The issue is a regression starting with 2025.1.211

Environment
jQuery: 3.4.1
Kendo UI version: 2025.1.211
Browser: [all]

Bug report

Spreadsheet cellContextMenu() throws an error

Regression with 2024.4.1112

Reproduction of the problem
Run the Dojo: https://dojo.telerik.com/SlDUjkTQ

Check console

`Uncaught TypeError: spreadsheet.cellContextMenu is not a function`

Environment

jQuery: 3.4.1

Kendo UI version: 2024.4.1112 or newer
Browser: [all]

### Feature Request

The TypeScript definitions of the Kendo UI Grid are missing the "editable" object - the object that is built runtime when the grid enters edit mode. 

### Environment

* **Kendo UI version:** 2020.3.915
* **jQuery version:** 1.12.4
* **Browser:** [all] 

Hi, 

We have some multiselect controls which can have a large number of values, and selected values. This causes an issue where the height becomes unreasonably large compared to other controls. 

For a typical example of the issue, see here: Multiselect height issue | Kendo UI Dojo

As can also be seen in the provided example, setting max-height with an overflow isn't a viable solution as then it becomes very difficult to see what has been selected - the vertical scroll is much too quick (at least it is using my mouse which has discrete scroll values). Also, there are both dropdown buttons and scroll buttons which is ugly and confusing for end users.

Our suggestion to resolve this would be to add an option for a "single line mode" so that functionality is not broken for other clients. When using this mode, all the items will be kept in a line. In the event of an overflow, then you could either a) cut off the items with an ellipsis "..." or b) enable horizontal scrolling (ideally without a visible scrollbar). 

See this example in the DevExpress controls for an example of horizontal scrolling in "Single line mode".
JavaScript/jQuery Tag Box - Overview | jQuery/JS Example
You can see that when all the items are selected, the height is kept consistent. It is still reasonably easy to read as you can easily scroll along.
Something similar to this solution would be ideal for us.

Bug report

<script> tag gets executed on drag when encoding is enabled in Grid

Reproduction of the problem

Dojo: https://dojo.telerik.com/MkqjldFK

Drag the row by the drag handle

Alert gets executed

Expected/desired behavior
<script> should not be executed

Environment

jQuery: 3.7.0

Kendo UI version: 2024.3.1015
Browser: [all ]

Hi Team,

We are using the Kendo Spreadsheet and would like to request a feature to display a character limit indicator while the user is entering data in the cell. This is to prevent users from exceeding the character limit of a cell.

Requirement:

• When the user starts typing in a cell, it should display a live character count e.g. "10/100" if the user has entered 10 characters and limit is 100.
• Once the user reaches the maximum limit (e.g. 100/100), further input in the cell should be restricted.

Thank you!

Bug report

When the DropDownList component is configured with Adaptive Mode and Filtering, opening the dropdown on a mobile device and attempting to type in the search field causes the popup to close immediately.

Reproduction of the problem

1. Open the Dojo link: Telerik Dojo on a mobile device or use mobile emulation in a browser.
2. Click on the DropDownList to expand the options.
3. Tap inside the search field to start typing.

Current behavior

With Adaptive Mode and Filtering enabled, the DropDownList popup closes immediately when tapping the search field on a mobile device.

Expected/desired behavior

The DropDownList popup should remain open when tapping the search field on a mobile device, allowing users to enter text and filter options.

TicketID:

1678876

Environment

• Kendo UI version: 2025.1.211
• Browser: [all]

Bug report

Spreadsheet validation on datatype=list, values in the dropdown are parsed to numbers. Numeric strings are automatically formatted by removing the heading zero.

Reproduction of the problem

Dojo: https://dojo.telerik.com/eOOvKJxL

                  validation: {
                      dataType: "list",
                      showButton: true,
                      comparerType: "list",
                      from: "{ \"001\", \"002\", \"Baz item 3\" }",
                      allowNulls: true,
                      type: "reject"
                    } 

The bug is a regression, formatting is different with a 2017 version: https://dojo.telerik.com/sCvgBzBa/5

Environment
**Kendo UI version: 2025.1.211
**Browser: [all]

Charts support keyboard navigation. Currently, the focus indicator is rendered as a thick black border around the different chart items. Is there any way to customize it? We usually use dashed red borders throughout our application to indicate focused elements and it would be great to stay consistent.

I found this article which leverages the highlight and saw that the series.highlight.toggle setting allows modifying the highlight's visual element, but options are very limited and do not allow sufficient customization.

Would like to request that the ability to set a 'CenterTemplate' be added to the Radial and Linear Gauge charts. We show a percentage based label using jquery by appending to the chart wrap a label to show 'x of y (z%)'. What we've seen is that when you go to export the chart, this label doesn't follow with it.

When using other charting types, for example the Arc Gauge or Circular Gauge, they do have a property called 'CenterTemplate' which allows us to do labels like above and have it export correctly.

Can the property be added to other Charts so that we can customize a label to show information such as percentage based text?

Bug report

This is a continuation of the following issue.

Probably related to:
https://source.chromium.org/chromium/chromium/src/+/62d86ddddc8fad157321e42e2acdb18b6ebba951

Reproduction of the problem

1. Open the following Dojo in a browser running under the Chromium engine.
2. Notice that there is a an console error which showcases sporadically, indicating the following.

Current behavior

The animation container's aria-hidden attribute causes a console error in Chrome and Edge.

Expected/desired behavior

The animation container's aria-hidden attribute should not cause a console error in Chrome and Edge.

Environment

• Kendo UI version: 2024.4.1112
• Browser: [Chrome, Edge]

Example: https://runner.telerik.io/fullscreen/yypoqSea

This example is based on the example from the docs with `navigatable: true` and enough data that the user needs to scroll in order to see the bottom row.

On Chrome on macOS, the filter menu cannot be used when `navigatable: true` and "Tap to click" is enabled in the macOS Trackpad settings. When clicking on the filter icon, the menu disappears very quickly (see screen recording). As a workaround, setting `navigatable` to false seems to resolve the problem. The same issue does not seem to occur on Safari, however, there is still odd behavior with the scrolling.

For some reason, screen size, resolution, and window settings impact the ability to reproduce the issue. The most reliable way for me to reproduce the issue was with Chrome in full screen on a 16-inch MacBook (13-inch works too) with the bookmarks bar showing and no external displays connected. Hiding the bookmarks bar or not using full screen seems to make it more difficult to reproduce.

See demo page: https://docs.telerik.com/kendo-ui/api/javascript/ui/colorpicker/configuration/clearbutton

The example uses "<input id="colorpicker" type="color" />".  Opening the preview reveals a black color.
Change the input-tag to div and the 'clear'-style is presented in the preview.
Or remove the color type when using the input-tag: "<input id="colorpicker" />" also correctly represents clear.

I can also locally reproduce it with Kendo UI jQuery v2024.4.1112.