I'm seeing an error in the Chrome console when the filter menu is clicked on in a kendo grid: https://demos.telerik.com/kendo-ui/grid/filter-menu-customization

You can see the example in the link above by opening your console in Chrome and clicking on the filter button. 

Here is the error:

Blocked aria-hidden on a <a> 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. Consider using the inert attribute instead, which will also prevent focus. For more details, see the aria-hidden section of the WAI-ARIA specification at https://w3c.github.io/aria/#aria-hidden.

When the browser is zoomed, the TabStrip scroll right arrow does not change to disabled when there are no more tabs to scroll into view. 

It looks like the problem is in kendo.tabstrip.js _toggleScrollButtons function, the following line:

that._scrollNextButton.toggleClass('k-disabled', scrollLeft === ul[0].scrollWidth - ul[0].offsetWidth);

When the browser is zoomed, kendo.scrollLeft(ul) returns a decimal value.  https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollLeft has the warning: "On systems using display scaling, scrollLeft may give you a decimal value."

scrollWidth and offsetWidth are rounded to integer.

My workaround is to override the _toggleScrollButtons function and do the following:

that._scrollNextButton.toggleClass('k-disabled', Math.abs(scrollLeft - (ul[0].scrollWidth - ul[0].offsetWidth)) <= 1);

Bug Title: Filter controls are not accessible via keyboard under 'Security Groups and Service Accounts' screen.

Severity: Sev1 (Critical)

Test Environment: OS: Windows 11 22H2
OS Build: 23620.1000

Repro steps:
1.Open https://codepen.io/oneID/pen/LYaGREP
2.Activate populate grid.
3.Try navigating to Column filter controls using keyboard.
4.Observe whether filter controls are accessible via keyboard under 'Security Groups and Service Accounts' screen or not.

Actual Result:
Keyboard focus does not remain on same control after pressing 'ESC' key to close the opened ‘Filter’ popup present under 'Security Group' screen.

Expected Result:
Keyboard focus should remain on same control after pressing 'ESC' key to close the opened ‘Filter’ popup present under 'Security Group' screen.

Bug report

Inserting sheets in the Spreadsheet component is not working as expected.

Reproduction of the problem

1. Open this Dojo example https://dojo.telerik.com/EyEzOcER/8
2. Click on the Load New Sheet Button
3. Click again
4. Open the Browser console to see the error:

Current behavior

Error is thrown.

Expected/desired behavior

Error to not be persistent.

Environment

• Kendo UI version: 2024.1.319
• Browser: [all]

Bug report

When typing in the search input a value that does not match any item of the Filemanager's content view, while a subfolder is selected, the expand arrow disappears.

Reproduction of the problem

1. Open this Dojo: https://dojo.telerik.com/AmOGOdut
2. Select documents and create a subfolder
3. Select the newly created folder and create another subfolder
4. Type "a" or other value that does not match
5. See the arrow disappearing

Current behavior

The expand arrow disappears.

Expected/desired behavior

The arrow should not disappear and the search to work correctly.

Environment

• Kendo UI version: 2024.2.514
• Browser: [all]

I have custom messages for my filter, these values replace the and/or values instead of just the visual after switching the and/or once.

Reproducer: https://dojo.telerik.com/AdOGEQey

When initially running you will see "en/of" (and/or), if you than press any of them the text below will insert the message value of the button rather than the underlaying value of "and/or".

Hi,

We have recently upgraded our Kendo MVC version to 2024.2.514.462. The normal upgrade works fine but I was trying to implement the `CSP template` after removing the `unsafe-eval` from the tag as it was announced in 2023 version.

I was following the example given in CSP template and tried changing the template defined in treeview (also as shown in the documentation):-

  sideNavList.kendoTreeView({
      /*template: "<span id='#= item.id #' class='navText'> #= item.text# </span>",*/
      template: ({ items }) => `<span id='kendo.htmlEncode(items.id)' class='navText'> kendo.htmlEncode(items.text) </span>`,
      dataSource: hierarchicalLeftNavData,

It is not throwing error but it's not able to recognize the `item` and rendering the template as:-

<span id="kendo.htmlEncode(items.id)" class="navText"> kendo.htmlEncode(items.text) </span>

Am I missing anything?

Build Dates & Run Dates range picker don't highlight days

Bug report
ComboBox is not raising blur Events when clear button in another ComboBox is hit

Regression since 2021.1.119

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

1) Select an item in ComboBox1

2) Select an item in ComboBox2

3) Hit the `x` button in ComboBox1

Expected/desired behavior
Blur event shall be triggered for ComboBox2

Environment
Kendo UI version: 2021.1.119 or newer
jQuery version: x.y
Browser: [all]

When a column is set to sticky in a grid and the user clicks edit and then cancel, that column become unsticky for that row only. This happened when I upgraded from 2022 to 2024 so the bug was created somewhere in there. To reproduce, see this dojo: 
https://dojo.telerik.com/@dojolee/evOPeBey

1. Shrink the right side of the screen until it is pretty small (about 700px)
2. Click Run and make sure there is a horizontal scroll. If not, shrink the right and click run again.
3. Scroll and notice that the first column sticks
4. Click edit on the first row
5. Click cancel
6. Scroll and notice that the first row no longer has a sticky column.

Greetings!

I'm not sure if this is related to another bug report I submitted (https://feedback.telerik.com/kendo-jquery-ui/1656256-daterangepicker-clicking-end-input-now-changes-range-end-instead-of-forcing-users-to-select-full-range), but I noticed that after selecting the End date, the input retains focus. Clicking out of that input will trigger an extra change event. To illustrate, consider this sequence of events:

1. Select a Start date → first change event.
2. Select an End date → second change event.
3. Blur the End input → third (extra) change event.

This applies to version 2024.2.514 (see Dojo example for your consideration: https://dojo.telerik.com/EbuVoHIJ).

There would appear to be a similar bug that applies to some previous versions of Kendo UI for jQuery (I only tested as far back as version 2024.1.130):

1. Select a Start date → first change event.
2. Select an End date → second change event.
3. Click the End date to open the DateRangePicker again.
4. Without changing the value, click out of the DateRangePicker → third (extra) change event.

Note that repeating steps 3 and 4 again will not trigger any more extra change events until one of the values is actually changed.

Bug report

Image browser invalidFileType error contains &quot; since 2023.2.718

Reproduction of the problem

https://demos.telerik.com/kendo-ui/editor/imagebrowser

Expected/desired behavior

No &quot; shall be present in the error message when an unsupported format is selected

Environment
**Kendo UI version: 2023.2.718 or newer
**jQuery version: 3.7.0
**Browser: [all]

Clicking an item in the parent list reveals the child list that replaces the parent list.

At the top of the child list, there is a < back item that allows returning to the parent list.

For examples, see the drawers at:

• https://www.amazon.com/
• https://www.diy.com/ (make the window small enough to display the drawer button)
  

See also https://www.telerik.com/forums/kendo-ui-drawer-subitems

Bug report
Grid - Frozen Columns - 'lockable' property being ignored with Drag to Lock/Unlock

Regression introduced with 2023.3.1114

Reproduction of the problem
Open this Dojo example - https://dojo.telerik.com/ovaHinas/4

Drag a column from the locked section to the unlocked one

Expected/desired behavior
No drop shall be available.

Environment
Kendo UI version: 2023.3.1114 or newer
Browser: [all]

Bug report

Setting an empty string value when using an MVVM ColorPicker throws an error

Reproduction of the problem

1. Open the following dojo.
2. Notice that the ColorPicker produces an error when the value from the Observable object is set to an empty string.

Current behavior

Setting an empty string through the Observable object throws an error within the console.

Expected/desired behavior

Setting an empty string through the Observable object should not throw an error within the console.

Environment

• Kendo UI version: 2024.1.319
• Browser: [all]

Add a new Kendo UI component to display a record vertically (Or add an option to the existing grid to change the orientation of the records).

Usually, I was using vertical grid to display a single record but some people might need it to display more than one record (ex: when you compare items on best-buy web site)

The vertical grid could also be used as a property grid (http://www.telerik.com/products/silverlight/controls/propertygrid.aspx).

Bug report
ExpansionPanel control is not collapsing/expanding when set up collapseIconClass

Regression since R1 SP1 2023

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

Expected/desired behavior
The user shall be able to set expand and  collapse icons

Environment
Kendo UI version: 2023.1.314 or newer

I'd like to request adding a clear button similar to the Kendo UI ComboBox for the Kendo UI TextBox.

Thank you!