Completed
Last Updated: 30 Jun 2025 09:37 by ADMIN
Release 2025 Q3 (Aug)

Bug report

When a user edits a cell/row and presses enter, the cell is marked as dirty. However, the Save and Cancel buttons remain disabled, thus the user should focus on a different cell before being able to save changes.

Reproduction of the problem

  1. Dojo - https://dojo.telerik.com/JuMumnqH
  2. Edit a cell and press 'Enter'

Current behavior

The cell is closed and marked as dirty, the 'Save changes and 'Cancel changes' buttons remain disabled.

Expected/desired behavior

The buttons should be enabled once the cell is marked as dirty.

Workaround

cellClose: function(e){
                e.sender._toggleToolbarEditingItemsVisibility()
},

Environment

  • Kendo UI version: 2025.2.520
  • Browser: [all ]
Declined
Last Updated: 09 Jun 2025 07:26 by ADMIN
Created by: JEAN CHARLES
Comments: 3
Category: Kendo UI for jQuery
Type: Bug Report
0

Hi team, 

I think there is a bug in the dependency detection.

In the attached "config_buged.js" i have chosen some components. The component "chiplist" was partially checked due to dependency.

When lunching my application I got the error :

Message: e(...).kendoChipList is not a function
    at init._createList (kendo.custom.min.js:91:8505)
    at new init (kendo.custom.min.js:91:3218)
    at init._attachGroupable (kendo.custom.min.js:133:96797)
    at init._groupable (kendo.custom.min.js:133:96348)
    at init._continueInit (kendo.custom.min.js:133:33864)
    at new init (kendo.custom.min.js:133:33735)
    at HTMLDivElement.<anonymous> (kendo.custom.min.js:1:42737)
    at jQuery.each (jquery-3.1.1.js:368:19)
    at jQuery.fn.init.each (jquery-3.1.1.js:157:17)
    at e.fn.<computed> [as kendoGrid] (kendo.custom.min.js:1:42713)

 

I was forced to totaly check the "chipList" component as seen in the attached file config.json

 

Declined
Last Updated: 14 Apr 2025 10:24 by ADMIN
Created by: Michael D
Comments: 1
Category: Kendo UI for jQuery
Type: Bug Report
0

The Kendo-UI Diagram widget supports moving the whole diagram using the pan() method. However, the given offset does always have to be absolute.

Consider the following example:

The diagram is zoomed in and therefore not fully visible - assume a current offset of (-100, -100). The users should be able to pan using keyboard shortcuts. Whenever pressing one of the arrow keys, the diagram is moved in the corresponding direction by e.g. 50px:

If the user presses [ArrowRight], pan() needs to be called with an offset of (-50, -100).
If the user presses [ArrowUp], pan() needs to be called with an offset of (-100, -150).

However, since I do not know how much the diagram has already been moved, I cannot set the absolute offset required.

I have seen that pan() returns the current offset when being called without arguments, but this is not documented. Is this safe to use for that purpose or is there a better alternative? If yes, the documentation should be updated.

Duplicated
Last Updated: 20 Feb 2025 08:39 by ADMIN
Created by: AGB
Comments: 2
Category: Kendo UI for jQuery
Type: Bug Report
0

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.

Need More Info
Last Updated: 12 Feb 2025 13:58 by ADMIN

See demo page: https://docs.telerik.com/kendo-ui/api/javascript/ui/colorpicker/configuration/clearbutton

The example uses "<input id="colorpicker" type="color" />".  Opening the preview reveals a black color.
Change the input-tag to div and the 'clear'-style is presented in the preview.
Or remove the color type when using the input-tag: "<input id="colorpicker" />" also correctly represents clear.

I can also locally reproduce it with Kendo UI jQuery v2024.4.1112.

Need More Info
Last Updated: 01 Apr 2025 09:45 by ADMIN

Example: https://runner.telerik.io/fullscreen/yypoqSea

This example is based on the example from the docs with `navigatable: true` and enough data that the user needs to scroll in order to see the bottom row.

On Chrome on macOS, the filter menu cannot be used when `navigatable: true` and "Tap to click" is enabled in the macOS Trackpad settings. When clicking on the filter icon, the menu disappears very quickly (see screen recording). As a workaround, setting `navigatable` to false seems to resolve the problem. The same issue does not seem to occur on Safari, however, there is still odd behavior with the scrolling.

For some reason, screen size, resolution, and window settings impact the ability to reproduce the issue. The most reliable way for me to reproduce the issue was with Chrome in full screen on a 16-inch MacBook (13-inch works too) with the bookmarks bar showing and no external displays connected. Hiding the bookmarks bar or not using full screen seems to make it more difficult to reproduce.

Unplanned
Last Updated: 21 Jan 2025 13:57 by JAMES
Created by: JAMES
Comments: 0
Category: Kendo UI for jQuery
Type: Bug Report
0

Bug report
Line Chart Crosshair doesn't display on iPad iOS 17

Reproduction of the problem
Dojo: https://dojo.telerik.com/mGtuUvac

Expected/desired behavior
Crosshair shall display on tap

Environment
Browser: [all]

Completed
Last Updated: 28 May 2025 07:48 by ADMIN
Release 2025 Q3 (Aug)

Bug report

This is a continuation of the following issue.

Probably related to:
https://source.chromium.org/chromium/chromium/src/+/62d86ddddc8fad157321e42e2acdb18b6ebba951

Reproduction of the problem

  1. Open the following Dojo in a browser running under the Chromium engine.
  2. Notice that there is a an console error which showcases sporadically, indicating the following.

Image

Current behavior

The animation container's aria-hidden attribute causes a console error in Chrome and Edge.

Expected/desired behavior

The animation container's aria-hidden attribute should not cause a console error in Chrome and Edge.

Environment

  • Kendo UI version: 2024.4.1112
  • Browser: [Chrome, Edge]
Declined
Last Updated: 16 Jan 2025 11:36 by ADMIN
Created by: Matt
Comments: 3
Category: Kendo UI for jQuery
Type: Bug Report
0

https://dojo.telerik.com/yBSdUQYS demonstrates the issue:

When a grid detail row is expanded, and pushUpdate() is called on it, the row collapses.

What is expected is for the grid row to remain in its prior state (expanded or collapsed.)

Until this is fixed, is there a work-around, other than manually re-expanding the detail row(s)? This is not a feasible work-around in which multiple nested grid rows are collapses and re-expanded, as this causes the UI to jump unexpectedly for the user.

 

Need More Info
Last Updated: 06 Jan 2025 07:54 by ADMIN
Created by: Brijendra
Comments: 8
Category: Kendo UI for jQuery
Type: Bug Report
2

Hi,

We are facing issue on every popup and context menu open. aria-hidden property has been set to true by default while rendering the control.

Blocked aria-hidden on an element because the element that just received focus must not be hidden from assistive technology users. Avoid using aria-hidden on a focused element or its ancestor.

 
Declined
Last Updated: 21 Jan 2025 14:01 by ADMIN
Created by: JAMES
Comments: 6
Category: Kendo UI for jQuery
Type: Bug Report
0

Line Chart Crosshair doesn't display on Tablets.

Display's fine on Desktop & also on Mobile, but tested on iPad and Android tablets the Crosshair line does not display.

kendo.2020.1.114

 

Completed
Last Updated: 12 Mar 2025 14:27 by ADMIN
Created by: Stu
Comments: 1
Category: Kendo UI for jQuery
Type: Bug Report
0

there is no binding for noData

e.g.

        noData?: boolean | undefined;

    interface ChartOptions {
        name?: string | undefined;
        autoBind?: boolean | undefined;
        axisDefaults?: ChartAxisDefaults | undefined;
        categoryAxis?: ChartCategoryAxisItem | ChartCategoryAxisItem[] | undefined;
        chartArea?: ChartChartArea | undefined;
        dataSource?: any|any|kendo.data.DataSource | undefined;
        legend?: ChartLegend | undefined;
        panes?: ChartPane[] | undefined;
        pannable?: boolean | ChartPannable | undefined;
        pdf?: ChartPdf | undefined;
        persistSeriesVisibility?: boolean | undefined;
        plotArea?: ChartPlotArea | undefined;
        renderAs?: string | undefined;
        series?: ChartSeriesItem[] | undefined;
        seriesColors?: any;
        seriesDefaults?: ChartSeriesDefaults | undefined;
        theme?: string | undefined;
        subtitle?: string | ChartSubtitle | undefined;
        title?: string | ChartTitle | undefined;
        tooltip?: ChartTooltip | undefined;
        transitions?: boolean | undefined;
        valueAxis?: ChartValueAxisItem | ChartValueAxisItem[] | undefined;
        xAxis?: ChartXAxisItem | ChartXAxisItem[] | undefined;
        yAxis?: ChartYAxisItem | ChartYAxisItem[] | undefined;
        zoomable?: boolean | ChartZoomable | undefined;
        axisLabelClick?(e: ChartAxisLabelClickEvent): void;
        dataBound?(e: ChartDataBoundEvent): void;
        drag?(e: ChartDragEvent): void;
        dragEnd?(e: ChartDragEndEvent): void;
        dragStart?(e: ChartDragStartEvent): void;
        legendItemClick?(e: ChartLegendItemClickEvent): void;
        legendItemHover?(e: ChartLegendItemHoverEvent): void;
        legendItemLeave?(e: ChartLegendItemLeaveEvent): void;
        noteClick?(e: ChartNoteClickEvent): void;
        noteHover?(e: ChartNoteHoverEvent): void;
        noteLeave?(e: ChartNoteLeaveEvent): void;
        paneRender?(e: ChartPaneRenderEvent): void;
        plotAreaClick?(e: ChartPlotAreaClickEvent): void;
        plotAreaHover?(e: ChartPlotAreaHoverEvent): void;
        plotAreaLeave?(e: ChartPlotAreaLeaveEvent): void;
        render?(e: ChartRenderEvent): void;
        select?(e: ChartSelectEvent): void;
        selectEnd?(e: ChartSelectEndEvent): void;
        selectStart?(e: ChartSelectStartEvent): void;
        seriesClick?(e: ChartSeriesClickEvent): void;
        seriesHover?(e: ChartSeriesHoverEvent): void;
        seriesOver?(e: ChartSeriesOverEvent): void;
        seriesLeave?(e: ChartSeriesLeaveEvent): void;
        zoom?(e: ChartZoomEvent): void;
        zoomEnd?(e: ChartZoomEndEvent): void;
        zoomStart?(e: ChartZoomStartEvent): void;
    }

 

Planned
Last Updated: 19 Dec 2024 14:10 by ADMIN
Scheduled for 2025 Q1 (Feb)

var chart = $("#chart").data("kendoChart");
var series = [];

$(theData.Serieses).each(function (index) {
	series.push({
		name: theData.Serieses[index].Name,
		field: theData.Serieses[index].Name,
		data: theData.Serieses[index].SeriesPoints,
		xField: "X",
		yField: "Y",
		color: theData.Serieses[index].Colour,
		markers: {
			type: theData.Serieses[index].Shape
		}
	});
});
chart.setOptions({ series: series, noData: series.length == 0 });
chart.redraw();
console.log(chart.options);

When updating a chart after instantiation, because noData defaults to true, the overlay is shown immediately

if you try and set noData via setOptions then redraw(), the overlay is still in place

Honestly, this should have been marked as a breaking change as every single chart has to be updated to force noData to false just to show initially

 

 

 

 

Declined
Last Updated: 08 Dec 2024 20:31 by ADMIN
Created by: AGB
Comments: 3
Category: Kendo UI for jQuery
Type: Bug Report
0
Hi Guys

While upgrading and testing the latest 2024.4.1112 release I have noticed the loading indicator, for both the ComboBox and MultiColumnComboBox, has moved from the dropdown button to inside the edit control.

Is this a a bug or a design decision?

If it is the latter I can find no mention of this breaking change in the release notes, or were you hoping nobody would notice?

To me the old design whereby the loading indicator replaced the dropdown arrow was more logical giving the impression to a user the button was unavailable.

So my finial question ... How do we get the old functionality back?

Regards
Alan

Completed
Last Updated: 12 Dec 2024 14:43 by ADMIN
Release 2025 Q1 (Feb)
Created by: Alexa
Comments: 1
Category: Kendo UI for jQuery
Type: Bug Report
1

Hello,

My use case:

On grid dataBound, I am iterating over the table rows to perform some piece of custom logic on the row based off of the backing dataItem. Our production site is using version 2024.1.130, and everything is working great. Our next release we've updated to version 2024.2.514, and when we try adding a record, we get an error; when we try to access the dataItem of the last table-row - the dataItem is undefined. The grid.items() in my case is an array of size 21, and the internal _data array is size 20.

Repro conditions (as far as I can tell):

  • A Grid backed by a DataSource with server operations set to false
  • The DataSource should (?) have a filter configured
  • The size of the DataSource's data should (?) be larger than the pageSize

My workaround:

Simply perform a null check on the dataItem before doing the logic. We are calling DataSource.read in the DataSource.sync success callback anyway, so the grid will reload and the dataBound event will be handled afresh.

I've created the below dojo snippet to demonstrate a simplified version of my use case. I tested with 2024.1.130 and seems to work fine. I noticed the issue starting at version 2024.1.319.

https://dojo.telerik.com/INbSBrSg

 

A note: No, I don't actually use the internal _data property in my code, just for debugging purposes :)

Thanks!

-Alexa

Declined
Last Updated: 20 Sep 2024 07:17 by ADMIN
Created by: AGB
Comments: 1
Category: Kendo UI for jQuery
Type: Bug Report
0
Hi Guys,

Have just tripped over the following whereby html escaped title data is being shown in the Excel column headers when the grid is exported to Excel.

To illustrate the problem run the following dojo

    https://dojo.telerik.com/AwUMarUl

As you can see the first column title is not shown due to the angled brackets
The second column has the angled brackets escaped so the title shows correctly in the grid.

Now when the grid is exported the column headings are as follows:

    <Product Name>  &lt;Unit Price&gt;

which is not what is expected ... Any & all html escaped characters should be un-escaped.

Regards
Alan


Declined
Last Updated: 02 Oct 2024 08:08 by ADMIN
Created by: alex
Comments: 9
Category: Kendo UI for jQuery
Type: Bug Report
0

i've tried to apply autoFitColumn method for treelist accordingly to the documentation, https://docs.telerik.com/kendo-ui/api/javascript/ui/treelist/methods/autofitcolumn#autofitcolumn , and seems it assumes only "simple" columns structure, i.e. no nested headers.

 

Duplicated
Last Updated: 26 Aug 2024 10:11 by ADMIN
Created by: alex
Comments: 1
Category: Kendo UI for jQuery
Type: Bug Report
0

treelist

- has filterable mode 'row',

- some columns are not filterable,

- columns reordering is allowed

drag-n-drop of columns raises error in console

demo: https://dojo.telerik.com/aFIkOPUp

try to move column "position" left or right

 

Completed
Last Updated: 10 Jan 2025 12:48 by ADMIN
Release 2025 Q1 (Feb)
Created by: Lee
Comments: 0
Category: Kendo UI for jQuery
Type: Bug Report
0

There is an issue with the .k-sorted class being applied to the last column in the grid when the actual column is not visible. It also is not updating the k-sorted when a sort is applied after the grid was created. 

This seems to be an issue in the latest release if the column sorted on is hidden, the last column in the grid gets the class. I also noticed that sorting a column does not apply the k-sorted class to the correct column: https://dojo.telerik.com/@dojolee/eFIbaSUn 

Need More Info
Last Updated: 30 Aug 2024 07:13 by ADMIN
Created by: AGB
Comments: 5
Category: Kendo UI for jQuery
Type: Bug Report
0
Hi Guys,

I have been investigating an issue with the ComboBox component under Chrome whereby a scrollbar is being show when using the autoWidth option and a limited number of list entries.

The scenario is as follows

- When the control initially loads and you hit the dropdown button the list does not have vertical scrollbar.
  (See screen shot 1)  

- Select an item and and then hit the clear button.
  Now when you hit the dropdown the list has a vertical scrollbar.
  (See screen shot 2)

The issue is very random and can occur with any number of list items, providing the initial dropdown doesn't require a scrollbar.

I have tried to create a dojo to illustrate the problem but have so far failed.

Looking at the element with Dev tools I see on the initial dropdown the wrapper div is as follows

    <div class="k-list-content k-list-scroller" unselectable="on" style="overflow: hidden auto;">

but after select, clear & dropdown the div shows

    <div class="k-list-content k-list-scroller" unselectable="on" style="overflow: hidden scroll;">

Tracing through the code the problem is within the following function of the kendo.list.js file

        _refreshScroll: function() {
            var listView = this.listView;
            var enableYScroll = listView.element.height() > listView.content.height();

            if (this.options.autoWidth) {
                listView.content.css({
                    overflowX: "hidden",
                    overflowY: enableYScroll ? "scroll" : "auto"
                });
            }
        },

It would appear that under certain conditions Chrome is setting the enableYScroll value to true and hence the 'scroll'.

Looking at this function I cannot see a reason why there is even a need to set overflowY to 'scroll' surely just leaving it set as 'auto' is good enough and let the browser decided if scrollbars are required.

Regards
Alan

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