Bug report

When the DropDownList is configured with autoWidth:true, each opening of the component increases the width of the popup with 1px

Reproduction of the problem

1. Open this Dojo example - https://dojo.telerik.com/VzPJHcmm
2. Open the DropDownList multiple times

Current behavior

The width of the popup increases with each opening

Expected Behavior

The width should remain the same

Environment

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

Bug report

When the DropDownList component is configured with Adaptive Mode and Filtering, opening the dropdown on a mobile device and attempting to type in the search field causes the popup to close immediately.

Reproduction of the problem

1. Open the Dojo link: Telerik Dojo on a mobile device or use mobile emulation in a browser.
2. Click on the DropDownList to expand the options.
3. Tap inside the search field to start typing.

Current behavior

With Adaptive Mode and Filtering enabled, the DropDownList popup closes immediately when tapping the search field on a mobile device.

Expected/desired behavior

The DropDownList popup should remain open when tapping the search field on a mobile device, allowing users to enter text and filter options.

TicketID:

1678876

Environment

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

Bug report

In the DropDownList component with filtering, opening the dropdown on a mobile device and attempting to type in the search field causes the popup to close immediately.

Regression introduced with 2025.1.211

Reproduction of the problem

1. Open the Dojo link: Telerik Dojo on a mobile device or use mobile emulation in a browser.
2. Click on the DropDownList to expand the options.
3. Tap inside the search field to start typing.

Current behavior

The DropDownList popup closes immediately when tapping the search field on a mobile device.

Expected/desired behavior

The DropDownList popup should remain open when tapping the search field on a mobile device, allowing users to enter text and filter options.

Environment

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

Bug report

The change event is not fired when using the keyboard navigation in the DropDownList, if we first click in the filtering input.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliKondova/AnACEzIV
2. Open the popup and use the up and down arrows to navigate between the items.
3. Click in the filtering input.
4. Press enter to select an item

Current behavior

Item is selected, but the 'change' event is not triggered. If we do not focus on the filtering input, the change event will be fired. It will be fired also if the mouse is used. - screencast

Expected/desired behavior

The change event should always be fired when the selection in the DropDownList is changed, even if the user clicks in the filtering input.

Environment

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

Bug Report

The cascade event is triggered on initialization of the DropDownLists

Reproduction of the issue

1. Open this Dojo - https://dojo.telerik.com/nGNFvRwt
2. Open the browser console

Current behaviour

The cascade event is triggered on initialization

Expected behaviour

The event should be triggered when the value of the "parent" DropDownList is changed.

Currently, the Virtualized DropDownList does not handle the autoWidth property, as describe in the offical client-side API documentation.

It would be beneficial if there is a way to circumvent around this limitation.

Bug report

Binding an MVVM DropDownList to a property that is null results in an error on the console.

Reproduction of the problem

1. Open this example - https://dojo.telerik.com/@martin.tabakov@progress.com/eNUMeLix

Current behavior

An error is thrown

Expected/desired behavior

No errors should be thrown

Environment

• Kendo UI version: 2023.1.117
• Browser: [all]

Hi 

I'm using  lastest version 

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

In offical demo i found a problem, i don't know that is a issue or any thing.

When i use DropDownList Virtualization, i filter "LILA-Supermercado" then selected a value 10780, then fire change event (that true)

Then, I open and close dropdownlist, does not choose any thing, just open and close, dropdownlist fire change event again (that not true)

this happen with any value which not loading before scroll.

some one help me

Bug report

When remote data is loaded in the DropDownList and the loading icon appears while loading, the down arrow icon remains visible. Thus, both icons are overlapping.

Reproduction of the problem

1. Open the Dojo
   Note: if the data loads fast and the issue does not occur, open the browser developer tools in order to hit the debugger in the requestEnd event handler

Current behavior

Both - the loading indicator and the down arrow icon appear at the same time:

Expected/desired behavior

The down arrow icon should disappear while the loading indicator is displayed.

The issue is a regression starting with the 2023 R2 (2023.2.606) version

Environment

• Kendo UI version: 2023.3.1010
• Browser: [all]

The dropDownList supports several keyboard shortcuts as documented in https://demos.telerik.com/kendo-ui/dropdownlist/keyboard-navigation. However, when e.g. a KeyDown event is triggered (and handled) by the widget, its propagation is not stopped. This behavior can be witnessed in this DOJO.

In our case, we e.g. use dropDownLists inside dialog windows that can be closed via ESC. When pressing ESC while a dropDownList is focused, this not only closes the dropDownList (as expected), but also closes the dialog.

The dropDownList should stop the propagation of events that it handled.

Bug report

`DropDownListSelectEvent.dataItem` is undefined when using keyboard to select the optionLabel, but is defined when using the mouse

Reproduction of the problem

Steps

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

Make a selection (e.g. "Apples").
Select the optionLabel item.

Expected

The value of DropDownListSelectEvent.dataItem is the same whether the selection is made via keyboard or mouse (assumedly).
The value of DropDownListSelectEvent.dataItem is clearly specified in the API docs when selecting the optionLabel.

Actual
The value of DropDownListSelectEvent.dataItem is "Select an option…" when selecting with the mouse.
The value of DropDownListSelectEvent.dataItem is undefined when selecting with the keyboard.

Environment
Kendo UI version: 2024.1.130
Browser: [all]

Bug report

The Kendo UI DropDownList's OptionLabel has some padding before the OptionLabel which does not match corresponding items in list.

Reproduction of the problem

Please visit this Progress Kendo UI Dojo and open the Kendo UI DropDownList.

Current behavior

Expected/desired behavior

The OptionLabel should be matching the items below it.

Environment

• Kendo UI version: 2022.1.301
• jQuery version: Supported Versions
• Browser: all

Bug report

When the dataSource in the DropDownList is grouped and the user searches for a non-existing value after scrolling, an error is thrown in the browser`s console.

Reproduction of the problem

1. Open the Dojo - https://dojo.telerik.com/@NeliKondova/aLuxaViF
2. Scroll the items in the DropDownList
3. try to search for nonexisting value

Current behavior

The following error appears in the browser: kendo.all.js:324317 Uncaught TypeError: Cannot read properties of null (reading 'offsetTop')

Expected/desired behavior

There should be no error when searching for non-existing value is performed.

Environment

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

Bug report

When a DropDownList with filtering enabled is used inside a Kendo Window it gets unexpectedly closed when clicked between .k-input-inner and .k-input-value-text elements.

Reproduction of the problem

1. Open the Dojo
2. Open the first DropDownList
3. Then click the second DropDownList to open, but try to click between the red and the green border

Current behavior

The DropDownList is automatically closed

screencast

Expected/desired behavior

The DropDownList should remain opened when clicked

Environment

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

See Dojos. When setting the "filter" property with setOptions, the search box does not appear anymore.

Regression after 2023.1.425 (tested with 2023.2.718)

Before:

https://dojo.telerik.com/iwiyOkac

After:

https://dojo.telerik.com/UrOHuBeD

Bug report

List height not properly adjusted in Cascading DropDownList since 2023.1.314

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

1. Select Parent 2 from Parent DDL

2. Open Child DDL

3. Select Parent 1 from Parent DDL

4. Open child DDL

Scrollbar appears and not all items visible

Expected/desired behavior
Height shall be adjusted correctly and no scrollbar shall be present

Environment
Kendo UI version:  2023.1.314 or newer
Browser: [all]

Bug report

The Disabled attribute is not applying for the Kendo UI DropDownList.

Reproduction of the problem

Proceed to the following Progress Kendo UI Dojo which demonstrates the behavior.

          <input id="myDropDownList" disabled="disabled" />

Expected/desired behavior

The DropDownList should be disabled as seen in the 2023.1.425 version of Kendo UI for jQuery.

Note

This Disabled Attribute is working as expected for the UI for ASP.NET MVC/Core DropDownList.

@(Html.Kendo().DropDownList()
          .Name("territories")
          .HtmlAttributes(new { disabled = "disabled" })
          //...
)

Environment

• Kendo UI version: 2023.2.606
• jQuery version: All Supported Versions
• Browser: all

Bug report

The DropDownList does not change its popup height when items added/removed from its source.

This is a regression introduced with 2023.1.314 release.

Reproduction of the problem

• Run the following Dojo: https://dojo.telerik.com/aCoHAZuK/4
• Add new item to the list
• Open the popup again - a vertical scroll will be present, while the popup should be resized to display all the three items

Expected/desired behavior

The popup height should change according to the new number of items.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all]

Bug report

In a virtual DropDownList with a value set, the first item is marked as selected as well. The issue occurs when using jQuery 3.4.1 or later.

Reproduction of the problem

1. Open this Dojo example. - https://dojo.telerik.com/@martin.tabakov@progress.com/UkOmiYEj
2. Open the DropDownList.

Current behavior

Two items are marked as selected.

Expected/desired behavior

Only the item with value 3 should appear as selected.

Environment

• Kendo UI version: 2021.3.914
• **jQuery version: 3.4.1 and later
• Browser: [all]