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

The complete event is triggered after each file upload if chunkSize is set.

Reproduction of the problem

1. Open this Dojo example.
2. Select at least two files to be uploaded.

Current behavior

The complete event is triggered for each file after the uploading is done.

Expected/desired behavior

The complete event should trigger only once when the upload process for all files is completed.

Workaround in this Dojo example

Environment

• Kendo UI version: 2020.1.114
• Browser: [all]

The DatePicker widget does not focus the input element when the calendar icon is clicked. Because of that, validation errors are persisted even when the value of the input has been filled out correctly. The input needs to be manually focused and then unfocused to get rid of the validation message.

This behavior can be observed on the following demo page:

https://demos.telerik.com/kendo-ui/validator/custom-validation 

The demo should be viewed in mobile mode.

Bug report

If the ColorPicker tools in the Editor are configured to render a gradient, you cannot type in the HEX/RGB inputs.

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/AWEmUSOS/7
2. Open one of the Color tools.
3. Try to type in the inputs.

Current behavior

The inputs are not selectable and you cannot type in them.

Expected/desired behavior

The inputs should be selectable so that you can type in them.

Environment

• Kendo UI version: 2023.2.829
• Browser: [all]

Bug report

Reproduction of the problem

1. Open the https://dojo.telerik.com/SSFszYRK or https://dojo.telerik.com/yYFBekrt
2. Copy some text
3. Select part of the text in the Editor and try to paste using Ctrl + V

Current behavior

Currently, the highlighted (selected) text dissapers.

Expected/desired behavior

The selected text should not dissapear and the content of the Editor should remain unchanged.

Workaround

kendo.ui.editor.Clipboard.fn.onpaste = function(){
        if (this.editor.body.contentEditable === "false" || this.editor.body.contentEditable === "inherit" ) {
          return;
        }
      }

Environment

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

Bug report

Reproduction of the problem

1. Open the link in Firefox - https://demos.telerik.com/kendo-ui/editor/inline-editing .
2. Select and delete all the text in one of the inline editors.
3. Type any two (or more) characters to reproduce the issue.

Current behavior

If the user begins typing a word into the editor, the first character is automatically wrapped in a <p> tag.

Expected/desired behavior

The behavior between the browsers should be consistent. There should be no additional <p> tag.

Workaround: https://dojo.telerik.com/usTyJAmt/3

Environment

• Kendo/Telerik version: 2026.2.520
• 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. Run this dojo - https://runner.telerik.io/fullscreen/aKRBlRDR
2. Quickly change the views in no particular order

Current behavior

Occasionally the k-focus class is not cleared from a previously selected view.

Expected/desired behavior

The k-focus class should be cleared

TicketID:

1715639

Environment

• Kendo/Telerik version: 2026.2.520

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

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/tLeSgMPo
2. Create a new event
3. Drag and drop it over the existing one

Current behavior

The events overlap

Expected/desired behavior

The events should be deisplayed one below each other.

The issue is a regression starting with 2023.2.606

Environment

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

Bug report

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/VGCfaixF
2. Select the month part and start typing first letter of a February, April, June, September or November months.

Current behavior

The mentioned months not selected. However, some months such as Jan, July are selected as expected.

Expected/desired behavior

All the months should be filtered/selected when typing first letters

The issue is a regression starting with 2024.4.1112

Environment

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

To reproduce :
go to official dojo https://dojo.telerik.com/PfhfyBzh

select all text (ctrl+A) (or select text with image at the same time with mouse)

Start dragging the selection

---> the error occurs (check console devTools)

Uncaught TypeError: Cannot read properties of undefined (reading '_destroyResizeHandles')

The error occurs here :

let fe = u.extend({
            create: function(e) {
                let t = this;
                a(e.body).on(`dragstart` + S, function() {
                    var t = x.nodes(e.getRange())
                      , n = !1;
                    t.forEach(function(e) {
                        e.nodeName === `IMG` && (n = !0)
                    }),
                    n && t.length > 1 && e.elementResizing._destroyResizeHandles()

your algorithm find one image in the selection and assume we are resizing and try to call "_destroyResizeHandles"

I think you should test before calling this method so it should be :

n && t.length > 1 && e.elementResizing && e.elementResizing._destroyResizeHandles()

Bug report

DropDownList: dataItem(e.item) returns undefined when selecting across different groups

Regression since 2026.1.212

Reproduction of the problem

1. Open the next Dojo: https://dojo.telerik.com/aVJUwDTZ

2. Open the DropDownList.

3. Select an item from a group different from the one currently active/selected.

Observe the console for this.dataItem(e.item).

Current behavior
undefined is logged for this.dataItem(e.item)

Workaround: https://dojo.telerik.com/LUdpEmnY

Environment
Kendo UI version: 2026.1.212 or newer
Browser: all

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;
    }

Bug report

When text is hihlighet in Rwad-Only Editor and the user tries to paste a text, the highlighted text dissapears.

Reproduction of the problem

1. Open the Dojo
2. Copy some text
3. Highlight part of the text in the Editor and try to paste using Ctrl + V

Current behavior

Currently, the highlighted text dissapers

Expected/desired behavior

The highlighted text should not dissapear and the content of the Editor should remain unchanged.

Workaround

kendo.ui.editor.Clipboard.fn.onpaste = function(){
        if (this.editor.body.contentEditable === "false" || this.editor.body.contentEditable === "inherit" ) {
          return;
        }
      }

Dojo

Environment

• Kendo UI version: 2022.1.412
• Browser: [all ]

Bug report

Spreadsheet validation on datatype=list, values in the dropdown are parsed to numbers. Numeric strings are automatically formatted by removing the heading zero.

Reproduction of the problem

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

                  validation: {
                      dataType: "list",
                      showButton: true,
                      comparerType: "list",
                      from: "{ \"001\", \"002\", \"Baz item 3\" }",
                      allowNulls: true,
                      type: "reject"
                    } 

The bug is a regression, formatting is different with a 2017 version: https://dojo.telerik.com/sCvgBzBa/5

Environment
**Kendo UI version: 2025.1.211
**Browser: [all]

Bug report

When a DropDownTree is placed in a Kendo Dialog, an alert about 'Blocked area-hidden...' element appears in the console once the DropDownTree is opened.

Reproduction of the problem

1. Run the Dojo - https://dojo.telerik.com/RyeUSdVM
2. Open the Dialog and then open the DropDownTree.
3. Select an item in the DropDownTree.

Current behavior

A warning Blocked aria-hidden on an element because its descendant retained focus. The focus must not be hidden from assistive technology users. Avoid using aria-hidden on a focused element or its ancestor.... appear

Expected/desired behavior

There should be no warnring about hidden elements in the console.

Environment

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

Bug report

Grid rows could not be properly selected on iPad

Reproduction of the problem

1. Open the dojo on iPad - https://dojo.telerik.com/gWsPhtrv
2. Try to select a row.

Current behavior

The rows could not be selected.

Expected/desired behavior

It should be possible to select a row in the Grid when it is loaded on iPad.

Used device for testing: iPad Pro iOS18.6

Environment

• Kendo UI version: 2025.3.812
• Browser: [all ]