In Development
Last Updated: 14 Sep 2023 07:29 by ADMIN

Title basically says it all. Issue can be easily observed in the basic Multiselect with virtualization example:

  1. Open the dropdown
  2. Scroll to the bottom end
  3. Close the dropdown
  4. Open it again - popup's scroll position is incorrect and therefore shows blank.

What seems strange is that I cannot reproduce this issue with the combobox virtualization, although I found a somewhat similar bug submitted for the combobox - 

Last Updated: 05 Sep 2023 14:17 by ADMIN

As per the subject, you can no longer use the Calendar to select a date in a month before the currently selected Date. Please see the following demo:

Steps to reproduce:

  • Click on the Calendar button
  • Click on any month before the currently selected month
  • Click on any date in the month
  • Observe that the day is changed correctly but the month is incorrectly incremented by one

This error is not observed if you:

  • type in a date
  • use the mousewheel to scroll to the earlier date instead of clicking on the month
  • use Firefox instead of Chrome

We aren't certain but don't believe this error was present before the latest Chrome 113 update. The error is reproducible in all versions of KendoReact from 5.2.0 onwards.

Last Updated: 04 Aug 2023 06:16 by ADMIN
Scheduled for [R3 2023] PI 3
Created by: Kavitha
Comments: 3
Category: Editor
Type: Bug Report
  1. open using valid credentials.
  2. Navigate to any article link and hit enter.
  3. Select 'reply' button.
  4. Navigate to 'format' list and invoke it.
  5. Now Run the fast pass using Accessibility Insights for web and observe the failure 'aria input field name'.

Actual Result:
Aria input field doesn’t have an accessible name.

Control type is defined incorrectly as list item for combo box for 'format' combo box.

Expected Result:
Ensure every aria input field should have an accessible name.
Control type should be defined as combo box.

User Impact:
ARIA widget roles require additional attributes that describe the state of the widget. If a required attribute is not provided, the state of the widget will not be communicated to screen reader users.
Last Updated: 31 Jul 2023 07:16 by Joel Parker Henderson
Created by: Joel Parker Henderson
Comments: 4
Category: KendoReact
Type: Bug Report

On this page:

There's a syntax mismatch in end-of-line semicolons.

This line ends with a semicolon:

import '@progress/kendo-theme-default/dist/all.css';

This line does not end with a semicolon:

import { Calendar } from '@progress/kendo-react-dateinputs'

All teams that I know of consider it to be an error to do both ways in the same file.

The solution is to pick one way then be consistent. The broader solution is to use a linter, such as ESLint, that can process the code to ensure you're using your expected syntax and formatting.


Last Updated: 30 Jul 2023 05:57 by ADMIN
I've already submitted this to the GitHub issues -

Submitting here as it is an important regression with React 18 breaking all popup animations.
Last Updated: 30 Jul 2023 05:51 by ADMIN

According to the repo should be updated nightly. However it does not seem to be.

~/Projects/kendo-react-private (master) git remote -v origin (fetch) origin (push) ~/Projects/kendo-react-private (master) git fetch --tags ~/Projects/kendo-react-private (master) git pull origin master From * branch master -> FETCH_HEAD Already up to date. ~/Projects/kendo-react-private (master) git tag | grep v5 v5.0.0 v5.0.0-dev.202201182040


~/Projects/kendo-react-private (master) git log
commit 4bf2535e414ba2f342ddbef8daac9ec052f04cc2 (HEAD -> master, tag: v5.0.0, origin/master, origin/HEAD)
Author: kendo-bot <>
Date:   Tue Jan 18 22:41:34 2022 +0200

    chore(release): publish 5.0.0-dev.202201182040

v5.0.0 seems to be the latest tag. Could someone verify that the github repo is actually being updated?

Thanks for any help!

Last Updated: 30 Jul 2023 05:21 by ADMIN
Created by: Rita
Comments: 3
Category: KendoReact
Type: Bug Report

toODataString throw exception on text filter changed from is null to contains. 

Repro step:

1. Choose filter by Name which is using text filter.

2. Change filter from Is null to contains.

3. toODataString threw exception.


Error in /turbo_modules/@progress/kendo-data-query@1.5.5/dist/cdn/main.js (1:7873)
Cannot read properties of undefined (reading 'replace')
Last Updated: 30 Jul 2023 05:21 by ADMIN
Last Updated: 30 Jul 2023 05:18 by ADMIN
Release 4.6.0
AutoComplete focused item is not set correctly if the items are with different height.

Currently, it is required to have the same height for the items, but this can be very hard in cases when the items are dynamic with various height.
Last Updated: 30 Jul 2023 05:15 by ADMIN
Created by: Matej
Comments: 1
Category: KendoReact
Type: Bug Report


I have Scheduler vertical timeline with an user group and more users I add the wider is every slot.  Example 2 users . Example 4 users the slot is double in width in comparation with 2 users. Can I control this somehow?

Last Updated: 30 Jul 2023 05:14 by ADMIN
Created by: Stuart
Comments: 5
Category: KendoReact
Type: Bug Report

Hi Guys,

In GridProps for KendoReact Grid there is an error in the type information:

Found here:

In the GridProps.d.ts file it is:

     * Fires when a row is about to be rendered. Overrides the default appearance of the row.
    rowRender?: (row: React.ReactElement<HTMLTableRowElement>, props: GridRowProps) => React.ReactNode;

This should be changed to:

rowRender?: (row: React.ReactElement<React.HtmlProps<HTMLTableRowElement>>, props: GridRowProps) => React.ReactNode;


Note that the React.ReactElement definition is:

    interface ReactElement<P = any, T extends string | JSXElementConstructor<any> = string | JSXElementConstructor<any>> {
        type: T;
        props: P;
        key: Key | null;


So the first type parameter should be the props typ.

I noted this while making use of it. After changing it it behaves sensibly. Worked around in my case by using 'as any' to void the type clash.



Last Updated: 30 Jul 2023 05:13 by ADMIN
Created by: Christian
Comments: 2
Category: KendoReact
Type: Bug Report


I created a solution using KendoReact Editor.

The editor is set to enable the creation of tables (EditorTools.InsertTable).

When the property 'defaultEditMode' is set to 'iframe',  the editor inserts a correct table with a width of 100% and visible cell borders.

If I set the 'defaultEditMode' to 'div' and insert a table the table has a width of some pixels and no borders are shown. In other words, the inserted table is not usable.

I need to set the editMode to 'div' because otherwise the editor doesn't adjust its look to the other parts of the page. The font is wrong etc.

How can I get the tables to work in 'div' mode?


Kind regards


Last Updated: 28 Jul 2023 13:29 by ADMIN
Add accessibility insights for web extension for edge Anaheim(Dev) browser from

  1. open the given URL using valid credentials.
  2. Select 'reply' button.
  3. Now Run the fast pass using Accessibility Insights for web and observe the failure aria required children.

Actual results:

Elements with Aria role is not containing child role with in them.

Expected results:

Elements with Aria role should contain child role with in them.


User Impact:

For each role, WAI-ARIA explicitly defines which child and parent roles are allowable and/or required. ARIA roles missing required child roles will not be able to perform the accessibility functions intended by the developer.

Last Updated: 28 Jul 2023 13:02 by ADMIN
Created by: iConect Developer - Mike
Comments: 0
Category: KendoReact
Type: Bug Report

Grid Header shifting when filtering column.

When a column is half visible, and it is filtered, a misalignment will occur between the header and the Grid content.


Last Updated: 28 Jul 2023 13:00 by ADMIN
Created by: Nathaniel
Comments: 2
Category: KendoReact
Type: Bug Report

DropDownList and MulstiSelect do not open on click(IE 11). 

They do open sometimes, but it seems random.

They do open when using the keyboard.

Last Updated: 28 Jul 2023 12:59 by ADMIN
Created by: Ram
Comments: 0
Category: KendoReact
Type: Bug Report
Calendar picker Template displays wrong year range when you click on a certain year.

Steps to Reproduce:

1) Open in the Chrome browser

2) Click on the calendar icon, click on 'month/Year' in the calendar header e.g. March 2019

3) Click on the 'Year' in the calendar header i.e. 2019

4) further Click on the Year Range i.e 2010-2019

5) Year range will display from 2000 - 2090, Select year 2010

Wrong Year range (2090 - 2099) will display when clicked on 2010.

This is working properly in the Firefox browser and I observed the issue in Chrome.
Last Updated: 28 Jul 2023 12:06 by ADMIN

After updating the kendo version in my project to "^5.1.0" I've noticed that both grid pager dropdown and normal dropdowns won't close when clicked outside if the dropdown is opened using the arrow icon.

I've attached a video with the issue.

Is there any workaround for this?

Last Updated: 28 Jul 2023 12:05 by ADMIN
Release 4.13.0
Created by: Grant
Comments: 3
Category: KendoReact
Type: Bug Report

Hi team, 

Im not sure if this is a bug or an incomplete feature, so please advise.

1) TabStrip / Window behavior in v4.8.0 with bootstrap theme 4.40.0, see
Please note the style and behaviour of the window, its above the modal and can be dragged anywhere on the screen, even though it was rendered from within the TabStripTab component

2) TabStrip / Window behavior in v4.9.0 with bootstrap theme 4.42.0, see
As you can immediately see in this example, the TabStripTab heading is also above the modal, an obvious bug
My concerns are around how the window can no longer be dragged outside the TabStripTab container. Is this by design, beacuse in my use case, my tabs are smaller than my windows.

Note: I have not tested the windows with any other components.

Please advise.

Many Thanks,

Last Updated: 28 Jul 2023 12:00 by ADMIN
Created by: Ryan
Comments: 1
Category: KendoReact
Type: Bug Report
The ListView component has a prop called item that allows you to pass in a custom component for rendering. The type definition for that prop is a component with a props type of "any". The any prop type isn't good here because it's clear there's a structure to these props. Can you please modify this to add a type definition? Thanks.
Won't Fix
Last Updated: 28 Jul 2023 11:57 by ADMIN

I am using KendoReact Draggable and Droppable and we find a bug when using it. This bug even happen in the official demo.

The bug is described below:

When a droppable area is rendered out of the originall window size, the droppable cannot detect the onDragEnter() & onDropLeave(), of course onDrop neither.

it seems that kendo did not handle when user scroll while dragging the draggables, so that when the draggables was dragged to a zone out of the original window size, it failed to detect it.(Figure4)


I have also found another bug which is when you drag the draggables and scroll, the draggable will somehow detacted with the cursor, but I somehow already fixed it. Maybe it gives some hint for you to fix this bug, maybe.


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