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.

Hi Team,

I would like to request a way to allow the Kendo UI TreeList to be editable with the Kendo UI Editor.  For example, it should allow the Editor to use the insertUnorderedList or insertOrderedList. Those lists would be indented, and the text would return back to a hierarchical style.  Currently, this does not occur.

Replication

1. Go to this Progress Kendo UI Dojo.
2. Click the plus for a new level.
3. Click on first cell to open editor.  
4. Change content to an unordered list. 
5. Then, remove it.

From

To

Thank you!    

Bug report

If you have several Inline Editors and a Slider, switching focus from Slider and typing in the Editors result in an error in the console.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/EhiKaJAw/2
2. Change the Slider value
3. Go to the Editor right below the slider and type some text - it appears that the focus is stolen here as the text cursor is not shown
4. Go to the second Editor and type some text
5. Repeat steps 2-4 several times

Current behavior

An error is thrown in the console

Expected/desired behavior

No error should be thrown on the console

Environment

• Kendo UI version: 2024.1.319
• Browser: [all]

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

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]

In my application, I have grids with dozens of hidden fields. 

It would be beneficial if I could filter the available columns similar to what's available in the Windows Forms column chooser:

Bug report

When the user adds a group in the Grid and try to add a second group immediately, while the first grouping is still loading, then an error is thron in the console.

Reproduction of the problem

1. Open the dojo - https://dojo.telerik.com/CvYRPILM
2. Group by 'Freight' and immediately try to group by another field. Before the grid data source reloads from the first grouping, take another column to be grouped and select it without releasing it in the grouping space.
3. Once the first group has been loaded, release the second group

Note: you can try setting the n browser Network throttling to Slow 4G to easily reproduce the issue

Current behavior

Error: kendo.all.js:60347 Uncaught TypeError: Cannot read properties of undefined (reading 'left') is thrown and the Grid freezes

Expected/desired behavior

There should be no error in the console and the Grid should not freeze

The issue is a regression starting with 2023.1.314

Environment

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

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,

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? 

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 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

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]