Bug Report

When utilizing a scrollable, horizontal Kendo UI Menu, the height of the menu appears to stretch.

Reproducible

1. Go to this Progress Kendo UI Dojo.

Expected Behavior

The Menu's height should not stretch upon initialization as shown in this Progress Kendo UI Dojo.

Environment

• Kendo UI version: 2025.4.1111
• jQuery version: All Supported Versions
• Browser: all

The grid has a number of built in filters, what is not supported is searching for cells that have no value or some value (i.e. NULL or NOT NULL).
This would be a very useful addition.

Bug report

Using Edge/Chrome, upon pasting underline text in the Kendo UI Editor, the content is rendered underline, but the UI doesn't highlight the button. In turn, if the user toggles the underline style for parts of the text, it doesn't work. At this point, the button is now highlighted for the part, but switching back to no underline style doesn't have any effect regarding the rendering. Removing the style for the whole line does work as expected.

Reproduction of the problem

1. Open Editor demo and enter some text, containing an underline.

2. Copy the entered text and reload page
3. Paste content at the start of the document. The text is not recognized as underline text

4. Select part of the text and toggle underline. Part of the text is recognized as underlined text now.

Expected/desired behavior

The underlined text decoration should be recognized by the UI and display.

Additional Notes

As a comparison, here is the content after paste:

Edge/Chrome

<p><span style="text-decoration-line:underline;">some text with underline</span></p>

FireFox - which is working

<p><span style="text-decoration:underline;">some text with underline</span></p>

Environment

• Kendo UI version: 2023.1.314
• jQuery version: All supported versions
• Browser: Chrome 111.0.5563.111 | Edge 111.0.1661.54

Bug report

When a CheckBox is set to enabled: false, the input is missing the k-disabled class. Thus, the checkbox does not have disabled styles applied.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/KFntNMfA

The desired rendering of the component - https://github.com/telerik/kendo-themes/blob/e1dbf1a74980bd82718f40085f6a8e21922f1897/tests/checkbox/checkbox-states.html#L44

Current behavior

The first checkbox is enabled and the second is disabled, but they appear the same.

Expected/desired behavior

The input should have the k-disabled class when the checkbox is disabled

Workaround

 <style>
        .k-checkbox:disabled{
          opacity: 0.6
        }
      </style>

Dojo - https://dojo.telerik.com/ztwIGjBO

Environment

• Kendo UI version: 2025.3.1002
• Browser: [all ]

Bug report

If you set a data validation for a number typed cell in the Spreadsheet, the message will be improperly formatted.

Regression introduced with 2024.4.1112

Reproduction of the problem

1. Open the Spreadsheet Overview demo - https://demos.telerik.com/kendo-ui/spreadsheet/index
2. Select an empty cell, and click Data Tab -> Data Validation
3. Select Number from the dropdown
4. Enter Min value
5. Check the Show hint box, and click apply
6. In the cell, type a value lower than the min

Current behavior

The validation message is improperly formatted - "Please enter a valid any value greater than 10,,10,,number,reject,greaterThan."

Expected/desired behavior

Message should be "Please enter a valid any value greater than 10."

Environment

• Kendo UI version: 2025.2.702
• Browser: [all]

Bug report

When there is a filter applied in Excel file and the file is imported in the Spreadsheet only the first row is visible. The issue occur when the filtered column is a numeric column.

Reproduction of the problem

1. Open the Demos - https://demos.telerik.com/kendo-ui/spreadsheet/index
2. Import the file

Book1.xlsx

Current behavior

Only the filter row is visible. The filter result data rows are hidden:

Expected/desired behavior

All rows with filtered results should be visible. Example:

The issue is a regression starting with 2024.4.1112 release

Environment

• Kendo UI version: 2025.1.227
• Browser: [all ]

Bug report

When the formula PRODUCT is used and the content of the cell based on which the formula is calculated is deleted, the result is incorrect.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliK/OKAQaGOv
2. Delete the content of the A1 cell

Current behavior

The result in B1 is 1, while it should be 0

Expected/desired behavior

When the content of the cell used for calculation is deleted, the product formula should result to 0 (as it is in Excel).

Environment

• Kendo UI version: 2024.3.806
• Browser: [all ]

Bug report

Spreadsheet fromFile() method does not return reject promise when an error occurs while loading file. An error is thrown on the browser console instead.

The issue has been tracked to the following implementation in the source:

• In the spreadsheet/workbook.js, the method fromFile() rejects the promise only when no file has been passed to the method code
• In the spreadsheet/excel-reader.js the method readWorkbook() should receive the deferred object as its last argument, but is renamed to progress and never used in the method;

Reproduction of the problem

• On the following Dojo select invalid file in the file input (.png, .pdf, .jpg or other);

Expected:

the 'No file to be loaded!' should be alerted;

Actual:

An error will be thrown on the console

Kendo version: 2023.3.1010

Bug report

Reproduction of the problem

Reproducible in the demos.

1. Use the HYPERLINK function in a cell:

=HYPERLINK("https://google.com")

Current behavior

The link does not work. It does if you specify a "friendly name":
=HYPERLINK("https://google.com", "google")

Expected/desired behavior

The link works with and without a "friendly name" specified, as in Excel.

Environment

• Kendo UI version: 2019.2.619
• jQuery version: x.y
• Browser: [all]

If you create a spreadsheet in excel and just have the below formula - it locks up when you activate the sheet. 

Or if you use the kendo spreadsheet and paste this into a cell, it also locks up.

=WORKDAY(TODAY(),-1)

Bug report

When a Grid is set to readonly mode, but it is also navigatable, and the user clicks on a cell and presses Tab, the next cell enters editable mode.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/HXzAIqWR/3.
2. Click in a cell and press Tab.

Current behavior

The cell is editable.

Expected/desired behavior

When the Grid is in readonly mode, it should not be editable when navigating using the tab key.

Environment

• Kendo UI version: 2025.3.825
• Browser: [all ]

Bug report

In a Spreadsheet with date cell editor, the fr-CA culture does not work.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/ogEvuTEf/6
2. Open the editor for the date cell

Current behavior

The Calendar is empty

Expected/desired behavior

The Calendar should display the dates defined in the validation

Environment

• Kendo UI version: 2023.3.1114
• Browser: [all]

Bug report

Office 365 Comment are shown with a warning:
"[Threaded comment]

Your version of Excel allows you to read this threaded comment; however, any edits to it will get removed if the file is opened in a newer version of Excel. Learn more: https://go.microsoft.com/fwlink/?linkid=870924

Reproduction of the problem

go to demo - https://demos.telerik.com/kendo-ui/spreadsheet/index

Current behavior

import a file from ticket - 1447268

A warning is displayed

Expected/desired behavior

No warning is displayed

Environment

• **Kendo UI version: 2019.3.1023

Describe the bug
When a custom editor is defined and next to it there is a frozen column, the custom editor cannot be opened.

To reproduce
Steps to reproduce the behavior:

1. Go to 'Dojo'
2. Click in cell B1
3. Try to open the calendar

Expected behavior
The calendar should be opened

Workaround

.k-spreadsheet .k-selection-wrapper .k-spreadsheet-editor-button.k-spreadsheet-last-column {
        transform: translateX(-100%);
}

The issue is a regression starting with themes version 6.3.0

Affected package (please remove the unneeded items)

• theme-default
• theme-bootstrap
• theme-material
• theme-tasks

Affected suites (please remove the unneeded items)

• Kendo UI for jQuery

Affected browsers (please remove the unneeded items)

• All

Hello,

I noticed in some of my charts that when I call saveAsPDF, the series.name seems to be just a literal string of the series.name option, even when I use a template.

Please see the attached dojo to reproduce (I based this dojo off of the Chart API series.name as template dojo example).

https://dojo.telerik.com/ZgsUVIjM

I noticed that this behavior starts in 2024.4.1112. Prior versions evaluated the template for the PDF.

I do have a workaround for this, which is included in comments in my dojo. I just exportPDF and then use kendo.saveAs.

Additionally, I noticed that the bars in the chart are at 0 in the PDF. I'm not worrying about that at this time, I'm exclusively interested in the series.name template being evaluated on saveAsPDF.

Here are some screenshots of the dojo and resulting pdf for v2024.4.1112:

Here is a screenshot of the pdf when the same dojo is run on 2024.3.1015:

Please let me know if you'd rather I paste the dojo code directly into this ticket, or attach as a code file.

Thanks!

-Alexa

Currently, the Typescript definition is missing information about all the possible options of the context menu, such as contextMenu.groups, contextMenu.close, etc.
Revise the typescript definition of the Grid context menu and add the needed options.

Bug report

The readonly method for the AutoComplete is not respected.

Reproduction of the problem

1. Go to this Progress Kendo UI Dojo.
2. Try to type into the input.

The issue occurs since version 2025.2.520.

Expected/desired behavior

The readonly to be respected.

Environment

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

Bug report

An error is thrown when the Chat with zh-TW/zh-CH messages is loaded

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/cQrfenNZ/3

Current behavior

An error is thrown from the messages files

Expected/desired behavior

No messages should be thrown

Environment

• **Kendo UI version: 2025.3.1002
• **Browser: [all]

Moving files MORE than one level upwards in a folder hierarchy is bugged.

If you have a nested folder hierarchy like this:

folder1

          folder2

                   folder3

1. moving a file from folder1 to folder2 works.

2. moving a file from folder2 to folder1 works.

3. moving a file from folder1 to folder3 works.

4. moving a file from folder3 to folder1 is BUGGED.

I have the issue in my code, but I also tested it in your demo site and it has the same problem.

https://demos.telerik.com/kendo-ui/filemanager/index

I have uploaded a screen dump of the error output from Chrome.

It is in or after the DataBinding event (Comming from Create action), the the error occurs, thus causing the Delete action and refresh of the UI to never occur.

The bug occurs in both Chrome and IE Edge.

Please fix the bug.

Bug report

In FileManager read request is triggered twice when navigating to a parent folder that has a nested folder. The issue does not occur if the folder contains only files without a nested folder.

Reproduction of the problem

1. The issue can be replicated if a nested folder is created in the demo service. The screencast here demonstrates the issue.

Current behavior

Two identical requests are sent when the parent folder is selected.

Expected/desired behavior

There should be a single request when navigating to a parent folder, even if it has a nested child folder.

Environment

• Kendo UI version: 2022.1.119
• Browser: [all ]