Hi team,

Please consider this dojo: https://dojo.telerik.com/zhQuuOhS

Here is the issue:

When validating field on the last line (field: units in stock), the validation tooltip is hidden (due to clipping), user needs to scroll down the grid.

Worse: if you then fill correctly the field and then re-empty the field, the validation tooltip is no more visible (no scrolling even possible in this case), please see screenshot attached.

Is there a way to make the validation tooltip immediately visible after validation takes place ? I mean without the need to scroll.

Best regards,

Laurent.

Hello, the Excel Export doesn't export the columns headers sums (view in image).

Is it possible export to Excel columns headers sums?

Describe the bug

Text overlaps on selected non-altering rows upon scrolling in Grid with sticky columns with version 2023.1.314

To reproduce

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

Select a non-altering row

Scroll to the right

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
Telerik UI for MVC
Telerik UI for Core
Affected browsers (please remove the unneeded items)

All
Build system information (please remove the unneeded items)

Not Applicable

Bug report

The row reordering functionality does not work correctly when the draggable column has a small width.

Reproduction of the problem

https://dojo.telerik.com/@user192/ipOyacoH

Open the Dojo and try to reorder a row. The icon inside the hint will keep changing and in some cases you won't be able to drop the row to the expected position.

If you move the hint a bit to the right(towards the next column) this behavior disappears.

Current behavior

The reorder hint shimmers and in some cases does not allow for reordering. This occurs when the column width is small(30px in the example).

Expected/desired behavior

Reorder should work as expected, regardless of the column width.

Environment

• Kendo UI version: 2022.2.621
• jQuery version: 1.12.4
• Browser: [all]

Bug report

When the selectable option is set to "multiple cell" and the user tries to select the content of a single column, the content of the entire row is selected.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliK/AzirANuT
2. Try to select the text in the France cell and drag down to select only the content in the ShipCountry column.

Current behavior

The content of the other columns is selected as well - https://somup.com/cZeXIvpRzk

Expected/desired behavior

The behavior is expected when the allowPaste option is enabled. However, once the allowPaste option is disabled only the content of the selected column should be selected.

Workaround

kendo.ui.Selectable.fn._allowPreventDefault = () => true;
Dojo - https://dojo.telerik.com/@NeliK/eTocoBOL

Environment

• Kendo UI version: 2024.1.130
• jQuery version: x.y
• Browser: [all ]

Bug report

In a Grid with popup editing, the Save button is clickable multiple times until the popup closes, which results in multiple Update requests

Regression introduced with 2024.2.514

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/NgQRZIyQ/4
2. Edit a row in the Grid
3. Click the Save button rapidly multiple times

Current behavior

The Save button is not disabled after the first click, and multiple Update requests are sent

Expected/desired behavior

The Save button should be disabled to avoid multiple Update requests

Environment

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

Bug Report

When the Grid is exported with child columns hidden with Multi-column headers, the columns headers are not exported.

Reproducible

1. Go to this Progress Kendo UI Dojo
2. Export the Grid

Current Behavior

The column headers do not all export:

Expected Behavior

The Grid should export all column headers like when they are not hidden - Dojo :

Workaround

Explicitly set the parent column's exportable configuration to true - Dojo:

$("#grid").kendoGrid({
    columns: [
        { field: "name", title: "Name" },
        {
            title: "Address",
            exportable: true,  //set to true 
            columns: [
                { field: "street", title: "Street", hidden:true, exportable: true },
                { field: "city", title: "City", hidden:true, exportable: true }
            ]
        },
        { field: "phone", title: "Phone" }
    ]
    //....
});

Environment

Kendo UI version: 2026.2.520
jQuery version: 4.0.0
Browser: all

Bug report

Reproduction of the problem

1. Open the Dojo linked here - https://dojo.telerik.com/oJOxqTQk
2. Run the page and inspect the browser console during widget initialization.

Current behavior

Initializing a hidden-by-default Kendo Grid configured with stacked layout throws a JavaScript error during initialization - Uncaught TypeError: Cannot read properties of undefined (reading 'find')

Expected/desired behavior

No errors should be thrown when initializing a hidden stacked layout Grid.

Environment

• Kendo/Telerik version: 2025.4.1321
• Browser: [all]

Bug report

When the Grid has no data, a horizontal scrollbar appears.

Reproduction of the problem

Run the Dojo - https://dojo.telerik.com/cwVUBcpz

Current behavior

There is a redundant scrollbar.
When there is a record in the same Grid, the scrollbar does not appear.

Expected/desired behavior

There should be no scrollbar when the columns have no width set and the Grid has no data.

Workaround

<style>
    .k-grid-content-expander{
      width: 98% !important
    }
  </style>

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

Environment

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

Bug report

In a Grid with virtual row and column scrolling enabled, if there are large number of hidden columns, the horizontal scrolling is very slow.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/EWeVaQOc/12
2. Try to scroll horizontally

Current behavior

Horizontal scrolling is slow

Expected/desired behavior

Horizontal scrolling should be smooth

Environment

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

Bug report

Reordering using clickMoveClick in the Grid is very inconsistent.

Reproduction of the problem

1. Open the Drag and Drop Grid demo - https://demos.telerik.com/kendo-ui/grid/drag-drop
2. Try reordering a row using click-move-click

Current behavior

The targeted row is not being reordered

Expected behavior

The targeted row should be reordered

Environment

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

Bug report

In a Grid with locked columns, there's an invalid aria-selected attribute on tr elements in the locked columns.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/aKVfRvAN/6
2. Select the first row
3. Inspect the tr element under the locked column in the browser

Current behavior

The tr role='none' element has invalid aria-selected attribute

Expected/desired behavior

The element shouldn't have the aria-selected attribute.

Environment

• Kendo UI version: 2025.2.520
• Browser: [all]

Bug report

Grid's Toolbar Columns Menu breaks after setOptions()

Reproduction of the problem

1. Go to and run this Dojo that combines the Toolbar Columns Menu demo and the Persist State demo: https://dojo.telerik.com/hVgwgCdr
2. Click "Save State" so you have some state data to restore later.
3. Click the Toolbar Columns Menu, uncheck "Contact Title", and click "Apply" to hide the column. The column gets hidden without a problem.
4. Click "Load State" to restore the previous state data. The column is displayed again and things are fine.
5. Click the Toolbar Columns Menu, uncheck "Company Name" and "Country", and click "Apply" to hide these columns.
6. Observe only one of these two columns was hidden and the Toolbar Columns Menu remains visible.
Open the Developer Tools, check the Console tab, and observe the error logged: "Uncaught TypeError: Cannot read properties of null (reading 'columns')"
It appears the columns menu's "this.owner" gets set to null at some point in the process of calling setOptions() and never gets set back to a reference of the grid.


Environment
Kendo UI version: 2025.2.702
Browser: [all ]

I realize this has been covered by this workaround in the past, but the need to write extra code for moving the column back to the original position makes this seem a bit "hacky" and most importantly, the user experience of being allowed to drag the column in the first place just to see it jump back seems wrong.

The good news is that the kendoGrid already has a mechanism for preventing the columnReorder event from getting fired in the first place! The bad news is that it only happens for columns that have either of these 2 classes ["k-group-cell, "k-hierarchy-cell"]

My request is to have a configuration option that enforces that same behavior for specific columns as:

1. Add a "reorderable" flag to be set as part of the column configuration (set it to false for those we want to keep in place)

2. This flag will set a class on those columns the same way it works for columns with "k-group-cell" or "k-hierarchy-cell" classes, so the event can be prevented.

There is one important caveat to consider with this approach: Only columns at the front and the back of the grid can be locked in place, so there needs to be validation to prevent having non-reorderable columns among reorderable ones.

Bug report

Reproduction of the problem

We noticed this issue on our client application. It is especially prominent on a slower network connection. We have a batch edit Grid (in cell editing). We clicked Add to create a new row, added data to it, double-clicked the Save Changes button, refreshed the page, and noticed we had 2 new entries instead of just 1 in the grid. We are currently using v2025.4.1111.

To make sure that it was not something isolated to our specific version / setup, I went to the Kendo grid demo site (https://demos.telerik.com/kendo-ui/grid/editing ) to try and reproduce. At the time of writing this ticket, the Kendo site used the latest version available, v2026.2.520.

Current behavior

The following steps reproduce the issue reliably.

1. Open the DevTools console
2. Click the Network tab and change the network throttle to be "Fast 4G"
3. Click Add in the Grid
4. Type in the cells
5. Click Save Changes several times rapidly
6. Observed multiple "Create" network calls in the DevTools Network tab
7. Refresh the page to see multiple "test567" entries in the Grid

TicketID: 1715189

Environment

• Kendo/Telerik version: Latest
• jQuery version: All
• Browser: [all]

Bug report

In a Grid with a hidden column, the aggregates in the footer shift to the right if you edit a cell.

Regression introduced with 2023.2.829

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/EXOmOcAs
2. Scroll to the bottom to see the footer
3. Edit a cell

Current behavior

The footer cells shift to the right.

Expected/desired behavior

The footer cells shouldn't shift to the right after updating a cell.

Environment

• Kendo UI version: 2024.1.130
• Browser: [all]

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/IbJSAmGX
2. Try to reorder the rows and place for example row 1 below row 5

Current behavior

No row can be placed below row 5.

Expected/desired behavior

It should be possible to reorder and place a row at last possition

The issue is a regression starting with 2026.1.415

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/guOqNNgh
2. Edit a row and save the new value

Current behavior

An error: kendo.grid.js:16278 Uncaught TypeError: Cannot read properties of undefined (reading 'field')

Expected/desired behavior

No error should be thrown. It should be possible to use detailedTemplate along with the stackedLayout

TicketID: 1715859

Environment

• Kendo/Telerik version: 2026.2.520
• Browser: [all ]

Bug report
Grid's loader gets lost in the scrollable area height is greater than the viewport height

Reproduction of the problem

Dojo: https://dojo.telerik.com/hqknEyYx/2

Run and click on Export to Excel button

Worakround: https://dojo.telerik.com/gSsYgQpZ

excelExport: function (e) {
          let gridHeight = $("#grid").height();
          if (gridHeight < 700) {
            $("div.k-loader-container-inner").addClass("smallHeight");
            
          } else {
            $("div.k-loader-container-inner").addClass("biggerHeight");
          }
        }
...
<style>
        div.loaderPosition {
          position: absolute;
          top: 50%;
          left: 50%;
          transform: translate(-50%, -50%);
        }
      div.biggerHeight {
        position: absolute;
          top: 50vh;
          left: 50%;
          transform: translate(-50%, -50%);
      }
    </style>

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

Bug report

Reproduction of the problem

1. Open this dojo - https://dojo.telerik.com/YupCowEr

1. Add a new item to the Grid

1. Click 'Save Changes'

1. Add another item to the Grid

1. Click 'Cancel Changes'

Current behavior

The last saved item is moved to the end of the Grid

TicketID:

1716706

Environment

• Kendo/Telerik version: 2026.2.520