The Kendo TreeList has an incorrect colspan value for the headers when the first column is hidden and the file is exported to Excel.

Dojo:

https://dojo.telerik.com/IFuCutaV/4 

The names of the headers are not displayed in the correct positions.

Bug report

When the content pasted in the Editor contains the 'MsoNormal' class the new lines are not preserved.

Reproduction of the problem

1. Open the Dojo.
2. Copy the text that is above the Editor and paste it in the Editor.

Current behavior

The text after the 'MsoNormal' class is pasted on a single line.

Expected/desired behavior

The new lines should be preserved.

Environment

• Kendo UI version: 2021.3.1109
• Browser: [all ]

Currently, when items are reordered or moved from one ListBox to another, the items are present in the dataSource, but not in the position they are displayed. I know about the following solutions: 

- https://www.telerik.com/kendo-jquery-ui/documentation/knowledge-base/list-box-reordering-not-working 

and - https://dojo.telerik.com/gDwkisQr 

However, I would like to have a built-in method for retrieving the items in the order they are displayed.

Currently, when Chrome Translate is activated and the user presses 'Enter' key in the Editor, the text is translated.

Also, when Translate is enabled and the user types fast, some characters disappear, as Chrome rewrites the inner text of elements. I know that this can be controlled by adding a translate attribute.

However, I would like to have the option to control this by the built-in Editor configuration options (for example, translate: false).

Bug report

When the virtualization is enabled, mapValueTo option is set to dataItem and initial value is set in the ComboBox, the cursor is not set at the end of the item.

Reproduction of the problem

1. Run the Dojo
2. Open the dropdown popup.

Current behavior

The loaded value is 'Hungry Owl All-Night Grocers' but the cursor is not set at the end of the text, but at the fifth position in the item.

Expected/desired behavior

The cursor should be set at the end of the text.

Environment

• Kendo UI version: 2021.3.1109
• Browser: [all]

Bug report

In DropDownList when virtualization is enabled and the value of the widget is set through the value method, the cascade event is fired twice.

Reproduction of the problem

1. Open the Dojo example.
2. Click the 'Set value' button

Current behavior

The cascade event will be triggered twice.

Expected/desired behavior

The cascade event should be triggered only once.

Environment

• Kendo UI version: 2010.2.617
• Browser: [all ]

Description

When navigating in Grid with default/default-ocean-blue-a11y theme the border is gray, while it should be black

Steps to Reproduce

Steps to reproduce the behavior:

1. Open the demos: https://demos.telerik.com/kendo-ui/grid/keyboard-navigation?autoRun=true&theme=default-ocean-blue-a11y or https://www.telerik.com/kendo-angular-ui/components/grid/keyboard-navigation
2. Select the Default theme Ocean Blue A11Y swatch

Expected Behavior

The border color of the focused elements should be black.

Actual Behavior

The border color is gray

Version Information

Working Version

• Version: 14.1.0

Broken Version

• Version: 14.5.0

Environment Information

Affected Theme(s)

• Default theme

Affected Suites

• Kendo UI for jQuery
• Kendo UI for Angular
• Kendo UI for React
• Kendo UI for Vue
• Telerik UI for Blazor
• Telerik UI for ASP.NET Core
• Telerik UI for ASP.NET MVC

Browser Information

• All browsers

Impact Assessment

Severity

• Low - Minor visual issue

Bug report

Group Header appears multiple times on PDF Export if the group is separated onto multiple pages

Reproduction of the problem
Run the following Dojo:

https://dojo.telerik.com/itOpeGON/6

Click on export to PDF

Open the PDF

Scroll down until you reach Venezuela to see there are two headers for the same group

Expected/desired behavior
Only one group header shall be present at the export

Environment
Kendo UI version: all
Browser: all

I am using a DropDownList with dynamic items that are grouped.

When opening the dropdown without items in the datasource the fixed group header is displayed empty.

When removing the last item from the datasource after the DropDown has already been opened, the first group header is still displayed when opening the dropdown.

I would expect the group header to never be displayed if there is no data.

See Dojo: https://dojo.telerik.com/EviPepIJ

Bug report

When a card in the TaskBoard is moved if the server returns an error the move could not be prevented. Thus, the card is rendered in the new position.

Reproduction of the problem

1. Open the examples:

• https://dojo.telerik.com/KniulaAd
• https://dojo.telerik.com/iGcbJlWz

2. Move a card to a different column.

Current behavior

Although the server returns an error the card is moved to the new column.

Expected/desired behavior

Moving the card should be prevented when there is an error.

Environment

• Kendo UI version: 2024.3.1015
• Browser: [all ]

Bug report

When a decimal number has 8 digits after the decimal separator and '#' is used for formatting the precision is lost and the number is rounded.

Reproduction of the problem

1. Open the Dojo example and check the result in the console

Current behavior

kendo.toString(0.00000015,"###.########" returns 0.0000002

Expected/desired behavior

The number should not be rounded and the precision should not be lost. The results should be the same with kendo.toString(0.00000015,"n8") and kendo.toString(0.00000015,"0.00000000")

Environment

• Kendo UI version: 2022.3.1109
• Browser: [all ]

In a grid with virtualization, when just normally scrolling down requests for the exact same data are often sent multiple times after each other. The reason for this is probably that the grid sends an asynchronous request for example Top 100, Skip 200 and then does not keep track of that it is still waiting for a reply for this request, before asking for the same data a short period later. 

Commonly requests for the same data is made 2 or 3 or more times after each other, causing performance problem at the server side and in many cases unnecessary calls to the database. Fixing this should lower the number of requests for data to the server considerably, maybe with a factor two or more with just normal grid operation when the user is just scrolling down to view more data in the grid.  

To demonstrate the problem, open a copy of the virtualization grid demo, for example here:

https://dojo.telerik.com/rsdigZKk/4

Open the Developer Tools and just observe which network requests are sent to the server. Just scroll down in any way and observe that very often the exact same request is made. A request for the same data has the same Top and Skip values in the parameters sent the server. You can see the servers reply is exactly the same JSON data multiple times after each other.

Solving this performance problem almost completely would seemingly be to in a variable just keep track of the "Latest request" sent, since the problem happens mostly just with normal scrolling in one direction with request sent after each other. So one would need to keep track of that a call for Top 100, Skip 200 has been made, and if the program wants to request the exact same data again, just wait for a reply for the first request, instead of sending a new one. (If needed, send a new request only after a specific timeout for a reply for the first one).

A more thorough solution would be to have a data structure to keep track of the Top and Skip tuples for all the calls to the server that has not yet have had a reply from the server, and not repeat those exact same calls again if still waiting for a reply for the first request.

Hi Team,

I have getting warning message when open down loaded excel file . This warning is coming if we apply conditional formatting in kendo spreadsheet .Please 

check the URL

https://dojo.telerik.com/

Dear Concerned,

1. Open https://demos.telerik.com/kendo-ui/spreadsheet/index

2. Select column B and drag mouse towards C, both columns will be selected which is correct behavior

3. Now just scroll down 2-3 rows using vertical scroll bar

4. Repeat step 2, this time it does not select B &  C, instead it selects B,C,D,E.

5. Seems a bug, not an expected behavior.

Observation that might help you in fixing it:

1. if you move scroll bar in such a way so that no merged cell is visible it works well, e.g. scroll down till 20th row becomes first visible row on screen and now repeat step 2, it will work

2. if scroll position is on top then behavior is correct as well

3. Same issue exists in case of multiple row selection with merged column and scroll position.

The grid dataBinding event exposes useful information like the action, based on which I can implement my logic.

The treeList equivalent only has the sender, making it virtually useless.

When a kendoContextMenu is applied to a combobox (html tag select) you are not able to show the select options by tapping it. The behaviour is on mobile browser only (tested iPad and Google Chrome developer tools with device toolbar enabled).

I reproduced the issue in telerik dojo, here is the code.

<!DOCTYPE html>
<html>
<head>
    <base href="https://demos.telerik.com/kendo-ui/menu/context-menu">
    <style>html { font-size: 14px; font-family: Arial, Helvetica, sans-serif; }</style>
    <title></title>
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2021.1.330/styles/kendo.common-bootstrap.min.css" />
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2021.1.330/styles/kendo.bootstrap.min.css" />
    <link rel="stylesheet" href="https://kendo.cdn.telerik.com/2021.1.330/styles/kendo.bootstrap.mobile.min.css" />

    <script src="https://kendo.cdn.telerik.com/2021.1.330/js/jquery.min.js"></script>
    
    
    <script src="https://kendo.cdn.telerik.com/2021.1.330/js/kendo.all.min.js"></script>
    
    

</head>
<body>
    <div id="example">
      <select>
        <option>Opzione 1</option>
        <option>Opzione 2</option>
        <option>Opzione 3</option>
      </select>
      
    <ul id="menu">
        <li>
            <img src="../content/web/toolbar/reply.png" /> Reply
        </li>
    </ul>
      
</div>
<script>
    $(document).ready(function() {
        setTimeout(function () {
            var initMenu = function () {
                menu = $("#menu").kendoContextMenu({
                    target: "select",
                    select: function(e) {
                        // Do something on select
                    }
                });
            };

            initMenu();
        }, 0);
    });
</script>

</body>
</html>

Bug report

When sorting is enabled for a virtualized Grid, in some cases, after scrolling to the bottom, the Grid does not show enough items to fill the tnire table.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/XZAkgwxd
2. Scroll to the bottom and sort the table, for example, by ID

Current behavior

The Grid shows only the last page of items, while there are enough items to fill up the entire table

Expected/desired behavior

Enough items to fill the Grid height should be displayed. There should be no blank space without records.

Environment

• Kendo UI version: 2025.4.1111
• Browser: [all]

Bug report

In an Editor that has a visible scrollbar, the selection event fires if you click on the scrollbar.

Reproduction of the problem

1. Open the Editor events demo - https://demos.telerik.com/kendo-ui/editor/events
2. Type some content until the scrollbar appears
3. Click on the scrollbar

Current behavior

The selection event triggers when you click the scrollbar

Expected/desired behavior

The selection event shouldn't trigger when you click the scrollbar

Environment

• Kendo UI version: 2023.2.718
• Browser: [all]

Bug report

When virtualization is enabled in the MultiColumnComboBox and the user scrolls down in the popup to load new items sometimes an item that is not actually hovered is highlighted as hovered (the 'k-hover' class is applied).

Reproduction of the problem

1. Open the Dojo
2. Scroll down to load new items. Note, that the behavior is not consistent and is not reproducible every time.

Current behavior

Sometimes random item that is not hovered has the 'k-hover' class.
screencast - https://www.screencast.com/t/KXhG7SBkE6

Expected/desired behavior

Items that are not hovered should not have the k-hover class and should not be highlighted as hovered.

Environment

• Kendo UI version: 2022.2.802
• Browser: [all ]