Change event triggered when not changing virtualized dropdownlist

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Lee
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Lee asked on 27 Jun 2023, 10:34 PM
I have a dropdown list with virtualization (https://dojo.telerik.com/AhuQEDEL/2). When I open and close the dropdownlist without actually changing anything the change event is occasionally triggered. I reproduced the odd behavior in this this Dojo. You will notice that the "change" is logged in the console when you open and close the list without selecting anything. This behavior is also inconsistent as sometimes it logs the change and sometimes it doesn't. 

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Neli
Telerik team
answered on 30 Jun 2023, 09:53 AM

Hi,

Thank you for reporting the issue. I will need some additional time to review the issue. I will write you back with more information on the matter at the beginning of next week. 

Thank you very much for your patience.

Regards,
Neli
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Neli
Telerik team
answered on 04 Jul 2023, 07:00 AM

Hi Lee,

Thank you very much for your patience.

Could you please confirm if the issue is reproducible on your side only with local data? I tried to reproduce the same behavior when the virtualization is enabled and the remote dataSource I used, but it seems that with remote data the change event is not fired. Here is a dojo that I used for testing purposes.

Looking forward to your reply.

Regards,
Neli
Progress Telerik

As of R2 2023, the default icon type will be SVG instead of Font. See this blogpost for more information.
Lee
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commented on 04 Jul 2023, 01:09 PM | edited

I only have local data so I don't know how I would confirm on my end if the bug is only when using local data. Either way, it needs to be fixed.

This dojo makes it clearer that the change event fires when nothing changes. Just open the menu and click outside to close it .

https://dojo.telerik.com/AhuQEDEL/4

Neli
Telerik team
commented on 07 Jul 2023, 10:29 AM

Hi Lee,

I wanted to double check as the issue was not reproduced on my side when testing in our demos. However, it is replicated in the examples with local data. Thus I logged a Bug report on your behalf and below you will find a link to the item.

- https://feedback.telerik.com/kendo-jquery-ui/1615418-change-event-is-triggered-in-dropdownlist-with-local-data-and-virtualization-enabled-when-popup-is-opened

As a token of gratitude I have updated your Telerik points.

Regards,

Neli

Lee
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commented on 29 Jan 2024, 07:08 PM

Hi Neli,

Is this in the latest version of Kendo UI that I can download? 

Neli
Telerik team
commented on 01 Feb 2024, 01:47 PM

Hi Lee,

the issue is not reproducible starting with Kendo version 2023.2.718. Thus, it has been closed. You can check the dojo linked here where the latest Kendo version 2024.1.130 is used: https://dojo.telerik.com/@NeliKondova/EMEcoTUC

The mentioned version 2024.1.130 is the latest version available for download.

Regards,

Neli

Lee
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commented on 01 Feb 2024, 03:30 PM

Thank you. 
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